Question

For a gas $C_{P}-C_{V}=R$ in a state $P$ and $C_{P}-C_{V}=1.10\, R$ in a state $Q, T_{P}$ and $T_{Q}$ are the temperatures in two different states $P$ and $Q$ respectively. Then

• A. $T_{P}=T_{Q}$
• B. $T_{P} < T_{Q}$
• C. $T_{P}=0.9\, T_{Q}$
• D. $T_{P} >T_{Q}$

Answer 1

Answer: (D)

$C_{P}-C_{V}=R$ for ideal gas and gas behaves as ideal gas at high temperature
so $T_{P} > T_{Q}$