Temperature and Heat and Energy

In summary, heat is the transfer of thermal energy, while thermal energy is the energy associated with the random motion of atoms and molecules. Temperature is related to kinetic energy and is directly proportional to the absolute temperature, with a proportionality constant of C. Kinetic energy is different from thermal energy in that it is the energy of motion of particles, while thermal energy is the total energy of all particles in a substance. Temperature is also different from heat, as it is a measure of the average kinetic energy of particles in a substance, while heat is the transfer of thermal energy from one object to another.
  • #1
gkangelexa
81
1
Heat is the transfer of thermal energy.

Thermal energy is the energy associated with the random motion of atoms and molecules.

Temperature is related to kinetic energy in the following way:
The average kinetic energy of a gas is directly proportional to the absolute temperature:
1/2 mv2 = C[itex]\Delta[/itex]T, where C is the proportionality constant.


How is kinetic energy different from thermal energy?

How is temperature different from heat (thermal energy)?
 
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  • #2
gkangelexa said:
Heat is the transfer of thermal energy.

Thermal energy is the energy associated with the random motion of atoms and molecules.

Temperature is related to kinetic energy in the following way:
The average kinetic energy of a gas is directly proportional to the absolute temperature:
1/2 mv2 = C[itex]\Delta[/itex]T, where C is the proportionality constant.


How is kinetic energy different from thermal energy?

How is temperature different from heat (thermal energy)?

This PF Library entry by Hootenany is a good introduction:

https://www.physicsforums.com/library.php?do=view_item&itemid=121

.
 

FAQ: Temperature and Heat and Energy

What is the difference between temperature and heat?

Temperature is a measure of the average kinetic energy of particles in a substance, while heat is the transfer of energy from a hotter object to a colder object. In other words, temperature is a property of a substance, while heat is a form of energy.

How does temperature affect the behavior of matter?

Temperature affects the behavior of matter by changing the speed at which particles move. As temperature increases, particles move faster and have more collisions, causing the substance to expand. On the other hand, as temperature decreases, particles slow down and the substance contracts.

What is specific heat and why is it important?

Specific heat is the amount of heat energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius. It is an important property because it determines how much energy is needed to raise the temperature of a substance. Substances with a high specific heat require more energy to increase in temperature, while substances with a low specific heat require less energy.

How do energy and heat relate to each other?

Heat is a form of energy that is transferred from one object to another due to a difference in temperature. When heat is transferred, it can cause a change in the internal energy of a substance, which can result in a change in temperature or a change in state.

What is the difference between thermal energy and heat?

Thermal energy is the total energy of all the particles in a substance, including both kinetic and potential energy. Heat, on the other hand, is the transfer of thermal energy from one object to another. Thermal energy can be converted into heat, but heat cannot be converted back into thermal energy.

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