Emma J.

asked • 11/22/15

# Kinetic theory and temperature

1. Explain why molecules have no kinetic energy when the temperature is 0 K.
2. Explain why there can be no temperature lower than 0 K.
3 some gas in a container is heated. What happens to the temperature?
4 some gas in a container is heated. What happens to the energy of the molecules?
5.The molecules in a gas slow down. What happens to the temperature of the gas?
6 .The molecules of a gas lose energy. What happens to the temperature of the gas?
7 The kinetic energy of a molecule can be found using this formula: KE = 1/2mv^2.
(a) What would happen to the kinetic encrgy of a molecule if its velocity doubled?
(b)What would happen to the temperature of some gas if the average velocity of the molecules doubled?

## 1 Expert Answer

By: Nina K. answered • 11/22/15

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Nina,
WIth respect to your last answer in part b), if the average velocity of the molecules doubled, then the kinetic energy quadruples. Since Kinetic energy of the gas is directly proportional to Kelvin Temperature, then this means that the Temperature also quadruples, not doubles.
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11/23/15 Nina K.

You are so right! I cross read the question on my screen as what would happen if KE of the molecule doubled, what would happen with temperature. If you read my answer to a), you can see that I would have answered b) correctly, since is the same thing. But thank you for pointing it out.
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11/23/15

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