Question

600J of heat is added to a monoatomic gas in a process in which the gas performs a work of 150J. The molar heat capacity for the process is
A. (a) 3R
B. (b) 4R
C. (c) 2R
D. (d) 6R

Answer 1

Correct Answer - C
`DeltaU=Q-W=450J=nC_VDeltaT`
`=n(3/2R)DeltaT`
`:.` `nDeltaT=(300/R)`
Now, `C=(Q)/(nDeltaT)`
`=(600)/(300//R)=2R`