Question

An ideal gas undergoes a mechanically reversible process (constant pressure, constant temperature

and adiabatic process. The gas entering a T1=650K and P1=10bar decreases its temperature at constant

pressure where V2=2.91x10-3 m3

. Then, it went to isothermal process to decrease its pressure. Finally,

the gas returns to its initial state. Take Cp=𝟕

𝟐

𝑹 and Cv=𝟓

𝟐

𝑹. Calculate the following:

a. T2,P3, V1 and V3

b. Q,W,ΔU and ΔH

Answer 1

T2=535K