Question

`4.48 L` of an ideal gas at `STP` requires 12 cal to raise its temperature by `15^(@)C` at constant volume. The `C_(P)` of the gas is
A. 3 cal
B. 4 cal
C. 7 cal
D. 6 cal

Answer 1

Correct Answer - D
`C_(V)=(DeltaU)/(nDeltaT),n=(4.48)/(2.24)=0.2`
`=(12)/(0.2xx15)=4cal`
`C_(P)=C_(V)+R=4+2=6cal`