In the equation, PVⁿ = constant, if the value of n is in between 1 and y $$\left( {{\text{i}}{\text{.e}}{\text{., }}\frac{{{{\text{C}}_{\text{P}}}}}{{{{\text{C}}_{\text{V}}}}}} \right),$$   then it represents a reversible __________ process.

A. Isometric

B. Polytropic

C. Isentropic

D. Isobaric

Answer: Option B

Solution(By Examveda Team)

$$P{V^n} = {\text{constant}},$$    if $$n$$ lies between the $$1$$ and $$y\left( {\frac{{{c_p}}}{{{c_v}}}} \right)$$  then the process is known as polytrophic process when $$n = 1$$  it is called isothermal process and when $$n = y$$  it is called as adiabatic process.