Argon gas is adiabatically compressed to half its volume. If P, V and T represent the pressure, volume and temperature of the gaseous system, respectively, at any stage, then the correct equation representing the process is

For an adiabatic process,             PVY = constant           TVγ-1 = constant and   TγP1-γ= constant Putting, γ = 5/3 (argon being a monatomic gas), the equation becomes:          PV5/3= constant          TV-2/3 = constant          T5/3 P-2/3 = constant ⇒ TP-2/5=constant