Q.

The value of  γ for helium is 5/3. Calculate the specific heat capacity at constant volume, if it’s molar mass is 4:

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya

a

5187.5 J/kg K

b

3112.5 J/kg K

c

31.125 J/kg K

d

3.1125 J/kg K

answer is B.

(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

we know that CV=3R/2=12.45 J/ mol-K for helium which is monoatomic. Therefore, specific heat capacity of gas at constant volume is cv=CvM=12.45 4=3.1125 Jgm-1K-1Cv=molar specific heat of gas at constant volumeM= molecular weightOr cv=3.1125×103 Jkg-1K-1⇒cv=3112.5 Jkg-1K-1
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon