Geo-Scientist Prelims 2026 Chemistry Q43: Initially in a container having an ideal gas, all the molecules had…

Initially in a container having an ideal gas, all the molecules had the same translational energy of 6·0 × 10⁻²¹ J. After some time, due to random motion of the molecules, the energies of the molecules were distributed according to the Maxwell-Boltzmann distribution law. The final temperature of the system is (Given : k = 1·38 × 10⁻²³ J K⁻¹)

1. (a) 289·72 K
2. (b) 0·481 K
3. (c) 481·1 K
4. (d) 2·898 K