Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
At $298 \mathrm{~K}$, assuming ideal behaviour, the average kinetic energy of a deuterium molecule is
ChemistryStates of MatterKVPYKVPY 2011 (SA)
Options:
  • A two times that of a hydrogen molecule
  • B four times that of a hydrogen molecule
  • C half of that of a hydrogen molecule
  • D same as that of a hydrogen molecule
Solution:
2824 Upvotes Verified Answer
The correct answer is: same as that of a hydrogen molecule
$(\mathrm{K} . \mathrm{E} .)_{\text {average }}=\frac{3}{2} \mathrm{kT}$
i.e., average kinetic energy depends only on temperature.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.