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 STP, $0.50 \mathrm{~mol} \mathrm{H}_2$ gas and $1.0 \mathrm{~mol} \mathrm{He}$ gas
ChemistryStates of MatterJEE Main
Options:
  • A Have equal average kinetic energies
  • B Have equal molecular speeds
  • C Occupy equal volumes
  • D Have equal effusion rates
Solution:
1851 Upvotes Verified Answer
The correct answer is: Have equal average kinetic energies
(a) For same temperature kinetic energies of $\mathrm{H}_2 \& \mathrm{He}$ molecules will be same because 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.