Air in a piston cylinder assembly undergoes a process from an initial state where T1=300K, v1=0.8m3 /kg to a final state where T2=420K, v2=0.2 m3 /kg.

a) What is the pressure at State 1 (in kPa)?
b) What is the change in entropy (in kJ/kg-K)?
c) Is it possible to perform this process adiabatically? Prove and explain why.

answer:

yes

explanation:

explanation:  

an electrode is a metal whose surface serves as the location where oxidation-reduction equilibrium is established between the metal and what is in the solution.

answer:

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answer:

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