When air and water are in normal atmosphere and have same temperature, do they have same average kinetic energy?
Please explain a bit.
Different matter same temp. same average kinetic energy?
2007-08-13 2:48 am
回答 (2)
2007-08-15 6:12 am
✔ 最佳答案
yes, of course.temperature of a body is defined as average kinetic energy that the body possess.
so, no matter what substance it is, unless they possess the same temperature, they have the same average kinetic energy.
2007-08-13 7:04 am
It can be Yes or No!
It depends on the mass of the two matters.
If they have the same mass, they do have the same average kinetic energy.
The average kinetic energy of the molecules measure the average moving speed of the molecules. It is actually equal to the mv^2/2.
Therefore, we require the same mass.
But the total energy of the two matters will not be equal as the total energy is equal to the sum of KE and PE. As the two matter are of different physical state, the PE will not be the same.
It depends on the mass of the two matters.
If they have the same mass, they do have the same average kinetic energy.
The average kinetic energy of the molecules measure the average moving speed of the molecules. It is actually equal to the mv^2/2.
Therefore, we require the same mass.
But the total energy of the two matters will not be equal as the total energy is equal to the sum of KE and PE. As the two matter are of different physical state, the PE will not be the same.
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