Question

At the same temperature and pressure, which of the following gases will have the highest kinetic energy per mole.

• A. Hydrogen
• B. Oxygen
• C. Methane
• D. All the same

Answer 1

Answer: (D)

All the same

Answer 2

K.E. per mole $= \frac { 3 } { 2 } R T$

so all will have same K.E. at same temperature.