In a certain processes, a gas absorbs 'Q' amount of heat and performs 'nQ' amount of work, the molar heat capacity of the gas in the processes is (given Cₚ/Cᵥ=Y)
A.R/(Y−1)(1−n)
B.R/(1−Y)(1−n)
C.(1−n)RY/(1−Y)
D.(n−1/Y−1)R