Question: Helium ( He ) gas initially at p l , T 1 undergoes a polytropic process, with n = k , to a final pressure

Helium (He) gas initially at pl,T1 undergoes a polytropic process, with n=k, to a final pressure of p 2. Determine the work and heat transfer per unit mass for the process. Assume ideal gas behavior and use constant specific heat. Use cp=2R. Express the answer with given parameters such as pl,p2,T1,k, and R.
Helium ( He ) gas initially at p l , T 1

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