2. Choose the best answer below. Which statement is FALSE concerning the kinetic

Question

2. Choose the best answer below. Which statement is FALSE concerning the kinetic molecular theory description of ideal gases? A) The average kinetic energy is directly proportional to the absolute temperature in Kelvin B) At a given temperature, the lower the molar mass of a sample of gas, the slower the average particle velocity will be C) At a given temperature, molecules with different molar masses will have the same average kinetic energy D) The collisions of gas particles with one another occur without loss of kinetic energy E) Individual gas particles move in a straight line until they collide with the container walls or another gas particle

Explanation / Answer

Option B is wrong because average velocity is inversely proportional to ?m at a given temperature where m is molar mass of a gas.

The lower the molar mass of a gas,the higher the average velocity of the gas.

Kinetic energy is directly proportional to absolute temperature and molecules with different molar masses will have same kinetic energy.

All collisions are perfectly elastic means there is no loss of energy while collision.Gas particles move in straight line until they collided with walls of container.

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