Question

The average kinetic energy of a gas molecule is

• A. proportional to pressure of gas
• B. inversely proportional to volume of gas
• C. inversely proportional to absolute temperature of gas
• D. directly proportional to absolute temperature of gas

Answer 1

Answer: (D)

directly proportional to absolute temperature of gas

Answer 2

Average kinetic energy
$E=\frac{3}{2} k T$
$\Rightarrow E \propto T$
Thus, average kinetic energy of a gas molecule is directly proportional to the absolute temperature of gas.