On problem #48, since we are given that the gas is ideal (not steam, or methane, etc.) with a constant heat capacity and that the expansion is adiabatic, can we use deltaH = Cp*delta T to find the shaft work? But since this is also the expression to find the isentropic work, would the efficiency be 1.00?
The efficiency measures the work relative to the isentropic work. In the isentropic case, the exit temperature will be different from the actual temperature given. So, to compute the efficiency you will need to compute the new output temperature.
MSS
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