A Container Having a Volume of 1 $\degree$ CIf the Helium Behaves Like an Ideal Gas,the Average Kinetic

Multiple Choice

A container having a volume of 1.0 m³ holds 5.0 moles of helium gas at 50 $\degree$ C.If the helium behaves like an ideal gas,the average kinetic energy per molecule is

A) 6.7 *10^-20 J.
B) 1.0 *10^-21 J.
C) 1.0 * 10^-20 J.
D) 6.7 *10^-21 J.
E) 1.3 * 10^-20 J.