Employing the ideal gas model, determine the change in specific entropy between the indicated states, in Btu/lbmol?ºR. Solve 2 ways: Use the appropriate ideal gas table AND also by using a constant specific heat value.
a) Air, P1 = 1 atm, T1 = 40 ºF, P2 = 1 atm, T2 = 400 ºF
b) Air, P1 = 20 psia, T1= 100 ºF, P2 = 60 psia, T2 = 300 ºF.
Please see the attached file.
Method 1: Using the gas table below:
1. P1 = 1 atm, T1 = 40 ºF = 500 ºR, s10 = ...
The solution provides detailed instructions using the two methods of ideal gas table AND also by using a constant specific heat value.
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