Question

In the equation $PV^\gamma$ = constant, the value of $\gamma$ is unity. Then the process is

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

Answer 1

Answer: (A)

isothermal

Answer 2

Given that:
$PV ^{\gamma}=$ 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