At 298 K, which of the following gases has the lowest average molecular speed?

see full answer

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*

An Intiative by Sri Chaitanya

CO2 at 0.20atm

He at 0.40 atm

CH4 at 0.80atm

NO at 1.00 atm

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

uav=8pVπM u∝pM=0.2044=0.067 for CO2 =0.404=0.32 for He =0.8016=0.22 for CH4 =130=0.18 for NO

Watch 3-min video & get full concept clarity