Which of the following statements is NOT a correct assumption of the classical m

Question

Which of the following statements is NOT a correct assumption of the classical
model of an ideal gas?
A. The molecules are in random motion.
B. The volume of the molecules is negligible compared with the volume occupied by
the gas.
C. The molecules obey Newton's laws of motion.
D. The collisions between molecules are inelastic.
E. The only appreciable forces on the molecules are those that occur during
collisions.


A sample of an ideal gas is in a tank of constant volume. The sample absorbs
heat energy so that its temperature changes from 300 K to 600 K. If v1 is the
average speed of the gas molecules before the absorption of heat and v2 is their
average speed after the absorption of heat, what is the ratio v2/ v1?
A. 1/2 B. 1 C. 2 D. 2 E. 4



please explain!!

Explanation / Answer

D. The collisions between molecules are inelastic. average speed is directly proportional to square root of Temperature in kelvin. therefore velocity increases 1.414 times.

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