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A substance has constant heat capacity CP = 3.5R and its equation of state is given by:
P (V-cRT) = RT
where c = 5 * 10-7 m3 /J. This substance is isentropically compressed from P1 =1 bar, T1= 300 K to P2= 5 bar. What is the temperature after compression?
(An "isentropic process" is one in which the entropy of the fluid remains constant.)
Two moles of an ideal gas expands reversibly and isothermally to ten times its volume at 25°C. Evaluate the change in entropy during the process. ( R = 8.314 JK -1 mol -1 )
assignment
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