HC Verma Chapter 23 Problem 45

Problem

Total translational KE of 1 mole gas at 300 K.

Key Concepts

KE=(3/2)RT per mole

Solution

KE=1.5×8.314×300=3741 J

Answer

3741 J

Concept Check

Same for monatomic and diatomic (translational only).

Common Mistakes

Including rotational energy.

Practice Tip

Translational KE=(3/2)nRT always.