One kilogram of air is in a piston-cylinder apparatus that can only exchange heat with a r...

One kilogram of air is in a piston-cylinder apparatus that can only exchange heat with a reservoir at 300 K. Initially this air is at 100 kPa and 27°C. Someone claims that the air can be compressed to 250 kPa and 27°C. Determine if this claim is valid by performing a second-law analysis of the claimed process.