In an adiabatic process of an ideal gas PVγ = constant where

Correct option is A

Correct Answer: (a) γ = Cp / Cv

Explanation

• In an adiabatic process of an ideal gas, the relation is:

PVγ=constant

• Here, γ (gamma) is the ratio of specific heats:

​$$\gamma = \frac{C_p}{C_v}$$​​

Information Booster

• Cp → Specific heat at constant pressure
• Cv → Specific heat at constant volume
• For adiabatic process:
• No heat exchange (Q = 0)
• Temperature changes due to work done.

Additional Knowledge 

• γ > 1 for all gases.
• γ for monoatomic gas ≈ 1.67, diatomic gas ≈ 1.4.