Question: Nitrogen gas is expanded in a polytropic process with n 5 1.25 from 2 MPa and 1200 K to 200 kPa in a piston -

Nitrogen gas is expanded in a polytropic process with n 5 1.25 from 2 MPa and 1200 K to 200 kPa in a piston - cylinder device. How much work is produced and heat is transferred during this expansion process, in kJ/kg?

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