Question

In the equation $P{V}^{\gamma }$ = constant, the value of $\gamma$ is unity. Then the process is

• A. isothermal
• B. adiabatic
• C. isobaric
• D. irreversible

Answer 1

Answer: (A)

Given that:
$P{V}^{\gamma }=$ constant
Given that $\gamma =1$
$PV=$ constant
For an ideal gas:
$PV=nRT=$ constant
i.e.
$nRT=$ constant
$T=\frac{\text{ constant }}{nR}=$ constant
Hence the process is isothermal.