Adiabatic mixing process

Question

Consider the following statements

            1. During a reversible non – flow process for the same expansion ratio work done by  a gas diminishes as the value of n in pvⁿ = C increases 

            2. Adiabatic mixing process is a reversible process

            Which of the statements given above is/are correct?

            (a) 1 only                     (b) 2 only         (c) Both 1 and 2          (d) Neither 1 nor 2