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What is average kinetic energy?

What does the kinetic theory state about the kinetic energy of gas molecules?

  • A. The kinetic energy of gas molecules is inversely proportional to the Kelvin temperature of the gas. B. The kinetic energy of gas molecules is directly proportional to the Kelvin temperature of the gas. C. The kinetic energy of gas molecules is unaffected by the Kelvin temperature of the gas. D. The kinetic energy of gas molecules is inversely proportional to the square of the Kelvin temperature of the gas.

  • Answer:

    B. The kinetic energy of gas molecules is directly proportional to the Kelvin temperature of the gas. Kinetic energy = energy in motion. The higher the temperature, the more motion it will have because the molecules bump into each other more often. ***Note: this only works with Kelvin because Kelvin is an absolute scale. At 0 K, there is no movement of any kind from molecules and atoms. And since kinetic energy = energy in motion, there is zero movement at 0 K.

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The hotter the gas, the faster the particles move so the kinetic energy is directly proportional to temperature A is incorrect and B is correct.

Mike

It says if you give kinetic energy to your gas molecules, they will pass it on to the person who's next to you, who will use this kinetic energy to slap you for making the smell.

CyberPolice

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