A Sample of Gas Is Cooled from 273°C to 0°C

Multiple Choice

A sample of gas is cooled from 273°C to 0°C. Which of the following statements accurately describes the sample at its new conditions?
1) The kinetic energy is now nearly zero.
2) The average velocity is now twice as fast.
3) The average velocity is half as fast.
4) The average kinetic energy is halved.
5) The average velocity is about two thirds of the original.

A) 1 only
B) 3 only
C) 2 and 4 only
D) 4 and 5 only
E) 2 and 5 only