StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

Newtons Law of Cooling in Thermodynamics - Coursework Example

Cite this document
Summary
"Newton’s Law of Cooling in Thermodynamics" paper looks extensively into the real-life application of Newton’s law of cooling thermodynamics. Newton’s law of cooling explains that its rate of cooling explains the difference in the temperature that exists in an object and the environs of the object. …
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER98.7% of users find it useful

Extract of sample "Newtons Law of Cooling in Thermodynamics"

NЕWTОN’S LАW ОF СООLING IN THЕRMОDYNАMIСS Student’s Name Institution Affiliation Introduction The report looks extensively into the real life application of the Newton’s law of cooling thermodynamics. The newton’s law of cooling explains that its rate of cooling explains the difference in the temperature that exists in an object and the environs of the object. When normally an ice cube put in a hot drink to make it cool faster. What that happens is that the heat will move from the hot drink to the ice cube and not the coolness of the ice cube to the hot drink. This moving of heat will result in having an average temperature between the ice cube and the hot drink. More importantly is that the water level in the ice cube will be less than that of the hot drink. The hot drink molecules will not merge with the ice cube but what will, in fact, happen during the transfer of heat from the hot drink to the ice cube the molecules of the hot drink will expand some of the kinetic energy losing heat during the process. There are three laws of thermodynamics. These two laws examine the relationship that exists between energy and heat. The first law of thermodynamics is clearly about the conservation of heat. It explains to us that energy can change form, but the amount of energy usually remains the same. A good example is when we use a pan or an oven to heat water or food; we have transformed the electrical energy into thermal energy. The second law of thermodynamics was discovered by a German physicist Rudolph Julius Emmanuel between 1822 and 1888. The law states that heat cannot pass from itself from a colder place to a hotter place. He later redefined it and it that heat in natural flows from a high temperature to a low temperature. If we have hot food and we place an ice cube on the food to cool it, the food will not cool because the coolness is moving from the ice cube to the food but because the food will melt the ice cube till the food and the ice cube get to a normal condition. From this, we get to understand that the heat moves from the food to the ice cube which cools it down. The third law of thermodynamics discovered by a German chemist called Hermann Walter. This law states that at the temperature of zero, entropy will also be zero. With this, Hermann Walter concluded that it is very difficult to reach the absolute zero. The absolute zero is the point at which the molecules motion stop at once. The absolute zero is the temperature at which the motion of the atom is zero (Suplee, 1996). Mathematical application of Newton’s law of cooling thermodynamics Mathematically the newton’s law of cooling can be represented as: This law can also represent as follows: We have two solutions to this; one is when the temperature of an object is greater than the temperature of its surrounding then T will be made the subject as follows, The second situation is when the temperature of an object is less than the temperature of its surroundings then T will be made the subject as follows:                   Real Life situation application of Newton’s law of thermodynamics The Refrigerator The diagram of a refrigerator indicating on how it works using Newton’s law from (Suplee, 1996). Air conditioner A diagram of air conditioner and how it uses Newton’s law from (Suplee, 1996) In real life situations, the calculations are used to determine the difference in temperature that exists in a given substance and the amount of heat that will be required to ensure that the required heat balanced in both the substances. Mathematics remains an important tool in newton’s making the reason that they came with the above calculations. When you look at the machines used in cooling, you will always find some mathematical calculations that are done to indicate the time, and the balance required in ensuring that the required temperature in a substance obtained. All these show the how cooling remains to be a mathematical application. There are machines in that have frequently been used in the real life situation where the low of Newton can directly be applied. These are the refrigerators and the air conditioners. When one looks closely at how to use the refrigerator, we realize that it transfers heat from its inner parts to the outside. That means it takes heat from food stored in it and transfers the heat to the outside. The reason as to why the back of the generator is usually hot while the inside is cold. The inner part of the refrigerator made in such a manner that it has evaporator. It is the evaporator that collects the heat from the food. Since the evaporator has gasses that are refrigerants like Ammonia and others, it condenses the vapor and channels to parts that will direct it to the areas where they will be released. The same happens with the air conditioners where the produced heat in the room is taken in by the air conditioner, and the heat passed to the outside while others cool air passed into the room. The mechanism of cooling in the room is almost similar to that happens in the refrigerator (Moran, 2001). The above processes show that cooling machines do comply with the newton’s law. They indicate that the principles and the laws conducted in this law are fully observed without any problem. The cooling takes place through the movement of heat from one point to the other. The movement of heat happens in different forms ranging from convection, conduction, and radiation. All these are ways through which heat moves from one place to the other without experiencing difficulties. Understanding of the concept in this law requires one to know the forms mentioned above of movement from one point to the other. To start with conduction is a method through which heat travels in substances that are solid in nature. Conduction best happens to those substances/ surfaces that are good conductors of heat. Heat moves from one molecule to the other till it reaches the last molecule. The continuous movement of heat will result in the endpoint being hotter same as the beginning point. On the other hand, we have convection which is the movement of heat from one point to the other through substances that are liquids. When a liquid is heated, then it replaces the cold that was in the liquid and it heats up. Also in the fluid substances, heat travels through molecules from one point to the other. With the rise of temperature in fluids, convection occurs naturally. Continuous heat and one that is higher will make the fluid converted to vapor form. Lastly, we have radiation which is the heat that travels through the vacuum. In fact the uses radiation as a form through which heat travels to the earth. Radiations of the sun can heat the skin if it is strong enough till you feel the effect (Beiser, 1991). Other Areas where the law can be applied Heat transfer in the body of human beings is very necessary as it makes human beings have the required amount of heat in their bodies. Also, through cooling, we can preserve our foods for long usage. This shows how important this concept of heat can turn out to be in our daily lives. To ensure that each and every person understands this importance, it is good that they understand this law knows how the machines are made and the mechanisms used in ensuring that the required temperature in this machines is got. The concept of Newton’s law plays an important role in one’s person something that makes every person easily understand what take place. Conclusion  Heat transfer is a broad topic used in many branches of engineering. For example, mechanical engineers who design engines—from steam locomotives to modern internal combustion engines—rely on a detailed understanding of how heat moves through all types of matter. Industrial engineers use heat transfer concepts to design climate control systems for manufacturing facilities, such as foundries or refrigerated food production facilities, which integrate temperature-sensitive human workers with extreme temperature processes. Moreover, heat transfer is so critical to biological engineering that it has spawned the specialty of "bioheat" transfer, which is the study of the normal functioning of the cardiovascular system as well as inherently heated treatments such as cryo-surgery and laser-based therapies (Paul, 2002). The laws of thermodynamics dictate energy behavior, for example, how and why heat, which is a form of energy, transfers between different objects. The first law of thermodynamics is the law of conservation of energy and matter. In essence, energy can neither be created nor destroyed; it can, however, be transformed from one form to another. The second law states that isolated systems gravitate towards thermodynamic equilibrium, also known as a state of maximum entropy, or disorder; it also states that heat energy will flow from an area of low temperature to an area of high temperature. These laws are regularly observed every day. Reference Beiser, Arthur, 1991. Physics, 5th ed. Reading, MA: Addison-Wesley. Fleisher, Paul, 2002. Matter and Energy: Principles of Matter and Thermodynamics. Minneapolis, MN: Lerner Publications. Moran, Jeffrey B, 2001. How Do We Know the Laws of Thermodynamics? New York: Rosen Publishing Group. Santrey, Laurence. Heat. Illustrated by Lloyd Birmingham. Mahwah, N.J.: Troll Associates, 1985. Suplee, Curt. Everyday Science Explained. Washington, D.C.: National Geographic Society, 1996. Read More

Mathematical application of Newton’s law of cooling thermodynamics Mathematically the newton’s law of cooling can be represented as: This law can also represent as follows: We have two solutions to this; one is when the temperature of an object is greater than the temperature of its surrounding then T will be made the subject as follows, The second situation is when the temperature of an object is less than the temperature of its surroundings then T will be made the subject as follows:                   Real Life situation application of Newton’s law of thermodynamics The Refrigerator The diagram of a refrigerator indicating on how it works using Newton’s law from (Suplee, 1996).

Air conditioner A diagram of air conditioner and how it uses Newton’s law from (Suplee, 1996) In real life situations, the calculations are used to determine the difference in temperature that exists in a given substance and the amount of heat that will be required to ensure that the required heat balanced in both the substances. Mathematics remains an important tool in newton’s making the reason that they came with the above calculations. When you look at the machines used in cooling, you will always find some mathematical calculations that are done to indicate the time, and the balance required in ensuring that the required temperature in a substance obtained.

All these show the how cooling remains to be a mathematical application. There are machines in that have frequently been used in the real life situation where the low of Newton can directly be applied. These are the refrigerators and the air conditioners. When one looks closely at how to use the refrigerator, we realize that it transfers heat from its inner parts to the outside. That means it takes heat from food stored in it and transfers the heat to the outside. The reason as to why the back of the generator is usually hot while the inside is cold.

The inner part of the refrigerator made in such a manner that it has evaporator. It is the evaporator that collects the heat from the food. Since the evaporator has gasses that are refrigerants like Ammonia and others, it condenses the vapor and channels to parts that will direct it to the areas where they will be released. The same happens with the air conditioners where the produced heat in the room is taken in by the air conditioner, and the heat passed to the outside while others cool air passed into the room.

The mechanism of cooling in the room is almost similar to that happens in the refrigerator (Moran, 2001). The above processes show that cooling machines do comply with the newton’s law. They indicate that the principles and the laws conducted in this law are fully observed without any problem. The cooling takes place through the movement of heat from one point to the other. The movement of heat happens in different forms ranging from convection, conduction, and radiation. All these are ways through which heat moves from one place to the other without experiencing difficulties.

Understanding of the concept in this law requires one to know the forms mentioned above of movement from one point to the other. To start with conduction is a method through which heat travels in substances that are solid in nature. Conduction best happens to those substances/ surfaces that are good conductors of heat. Heat moves from one molecule to the other till it reaches the last molecule. The continuous movement of heat will result in the endpoint being hotter same as the beginning point.

On the other hand, we have convection which is the movement of heat from one point to the other through substances that are liquids. When a liquid is heated, then it replaces the cold that was in the liquid and it heats up. Also in the fluid substances, heat travels through molecules from one point to the other. With the rise of temperature in fluids, convection occurs naturally. Continuous heat and one that is higher will make the fluid converted to vapor form.

Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(Newtons Law of Cooling in Thermodynamics Coursework Example | Topics and Well Written Essays - 1500 words, n.d.)
Newtons Law of Cooling in Thermodynamics Coursework Example | Topics and Well Written Essays - 1500 words. https://studentshare.org/physics/2055571-newtons-law-of-cooling-in-thermodynamics
(Newtons Law of Cooling in Thermodynamics Coursework Example | Topics and Well Written Essays - 1500 Words)
Newtons Law of Cooling in Thermodynamics Coursework Example | Topics and Well Written Essays - 1500 Words. https://studentshare.org/physics/2055571-newtons-law-of-cooling-in-thermodynamics.
“Newtons Law of Cooling in Thermodynamics Coursework Example | Topics and Well Written Essays - 1500 Words”. https://studentshare.org/physics/2055571-newtons-law-of-cooling-in-thermodynamics.
  • Cited: 0 times

CHECK THESE SAMPLES OF Newtons Law of Cooling in Thermodynamics

Energy Transfer and Thermodynamics

he first law of thermodynamics states that energy can neither be created nor destroyed.... The revelation of concepts regarding internal energy is the typical unique attribute of the initial law of thermodynamics.... he second law of thermodynamics states that the entropy of an isolated system that is not in equilibrium will be liable to increase over time, approaching the highest value at the equilibrium point.... This assignment "Energy Transfer and thermodynamics" discusses the four laws of thermodynamics using words, diagrams and equations where appropriate....
9 Pages (2250 words) Assignment

Energy Transfer and Thermodynamics

he four thermodynamic laws include the zeroth law of thermodynamics, the first law of thermodynamics, the second law of thermodynamics, and the third law of thermodynamic.... eroth law of thermodynamics: ... he first law of thermodynamics: ... he second law of thermodynamics: ... he third law of thermodynamics: ... This assignment "Energy Transfer and thermodynamics" consider two systems, the ice and the surrounding room, heat energy is transferred from the warmer surrounding to the cooling system which is the ice....
11 Pages (2750 words) Assignment

The Laws of Thermodynamics

eroth law of thermodynamics- this law states that once two thermodynamic systems are in equilibrium with a third one, then they are all in equilibrium with each other.... st law of thermodynamics- also the law of conservation of energy this law states that energy can undergo a change from one state to another but energy can neither be created nor destroyed.... nd law of thermodynamics- states that 'if there is absolutely no energy that leaves a system during energy exchanges then the potential energy of the state will be less than of the initial state....
6 Pages (1500 words) Assignment

Energy Transfer and Thermodynamics

Zeroth law of thermodynamics- this law states that once two thermodynamic systems are in equilibrium with a third one, then they are all in equilibrium with each other.... st law of thermodynamics- also the law of conservation of energy this law states that energy can undergo a change from one state to another but energy can neither be created nor destroyed.... nd law of thermodynamics- states that 'if there is absolutely no energy that leaves a system during energy exchanges then the potential energy of the state will be less than of the initial state....
6 Pages (1500 words) Assignment

Energy Transfer and Thermodynamics

The paper 'Energy Transfer and Thermodynamics' is being carried out to evaluate and present the laws of thermodynamics that are the zeroth law of thermodynamics, the first law of thermodynamics, the second law of thermodynamics, and the third law of thermodynamics.... The zeroth law of thermodynamics states that 'if two systems are both in thermal equilibrium with a third system, they are also in thermal equilibrium with each other' (Grote & Antonsson, 2009, p....
14 Pages (3500 words) Assignment

Energy Transfer and Thermodynamics

From the paper "Energy Transfer and thermodynamics" it is clear that the system contains 3000 kJ of thermal energy at 20°C, whereas system B contains 200 kJ of thermal energy at 50°C.... he minus sign in Fourier's law shows that the heat flows from a hotter point to a colder point.... xplain the Stefen-Boltzman law.... (8 MarksStefen-Boltzman law states that the radiating heat flux or emissive radiations are proportional to the fourth power of temperature on an absolute scale (Moran and Shapiro, 2006)....
12 Pages (3000 words) Assignment

Engineering Trans and Thermodynamics

The First Law: The first law of thermodynamics states that 'The total energy of an isolated thermodynamic system is constant'.... Thus, for a finite change: Second law: The second law of thermodynamics, states that the total entropy of any system cannot decrease except insofar as it flows outward across the boundary of the system.... "Engineering Trans and thermodynamics" paper defines the terms thermodynamics and energy, explains what is meant by a physical system, and distinguishes between an open and closed system, and defines the terms "Potential energy" and "Kinetic energy"....
11 Pages (2750 words) Assignment

Thermodynamics Assessment

The first law of thermodynamics is also known as the law of conservation of energy.... The second law of thermodynamics attempts to overcome the limitations of the first law.... "thermodynamics Assessment" paper defines the four laws of thermodynamics using words, diagrams, and equations where appropriate, explains what happens to the motion of water molecules when the ice melts into water, and calculates ΔS for the reaction, using the thermodynamic data provided....
9 Pages (2250 words) Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us