Question

The ratio of average molecular kinetic energy of $PC{l}_5$ to that of $O_2$ both at 300 $K$ is

• A. 1 : 1
• B. 7 : 2
• C. 176 : 1
• D. 2 : 7

Answer 1

The correct option is A 1 : 1

As we know,
average molecular kinetic energy = $3/2kT$
and it depends upon temperature only so both have same energy at same $T$.