Question

What is the average kinetic energy of the molecules of a gas
(a) at 0 degrees Celsius?
(b) at 100 degrees Celsius?

Answer 1

I think, that the average kinetic energy E of a molecule is given by the subsequent formula:
\[E=\frac{ 3 }{ 2 }RT\]
where R is the gas constant, namely R=8.31 J/(K*mol) and T is the absolute temperature of your gas. please try to substitute your numerical data in the above formula