Question: Problem # 7 ( 1 0 marks ) Helium gas ( H e ) in a piston - cylinder undergoes two thermodynamic processes: 1 -

Problem #7(10 marks)
Helium gas (He) in a piston-cylinder undergoes two thermodynamic processes:
1-2. Cooled at cooled at constant pressure from 225 kPa and temperature of 340C(State 1) to 100C(State 2)
2-3: Isentropically expanded
Problem # 7 ( 1 0 marks ) Helium gas ( H e ) in a

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