STANDARDPhysics-Kinetic Theory of Gases
STANDARD Physics Translational Kinetic Energy MCQ Question
Type: MCQ-conceptual-Easy-Class 11
The average translational kinetic energy of O₂ molecules (relative molar mass 32) at a particular temperature is 0.048 eV. The translational kinetic energy of N₂ molecules (relative molar mass 28) in eV at the same temperature is
A
0.0015
B
0.003
C
0.048
D
0.768
Correct Answer
Option C
Detailed Explanation
Average translational KE of a molecule is (3/2)kT. It depends on temperature and not on molecular mass. Hence average translational KE for N₂ will also be 0.048 eV.
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