chemistryTests on an adiabatic gas compressor yield values for inlet conditions $(T_1, P_1)$ and outlet conditions $(T_2, P_2).$ Assuming ideal gases with constant heat capacities, determine the compressor efficiency for one of the following: (a) $T_{1}=300 \mathrm{K}, P_{1}=2 \text { bar, } T_{2}=464 \mathrm{K}, P_{2}=6 \text { bar, } C_{P} / R=7 / 2$ (b) $T_{1}=290 \mathrm{K}, P_{1}=1.5 \text { bar, } T_{2}=547 \mathrm{K}, P_{2}=5 \text { bar, } C_{P} / R=5 / 2$ (c) $T_{1}=295 \mathrm{K}, P_{1}=1.2 \text { bar, } T_{2}=455 \mathrm{K}, P_{2}=6 \text { bar, } C_{P} / R=9 / 2$ (d) $T_{1}=300 \mathrm{K}, P_{1}=1.1 \mathrm{bar}, T_{2}=505 \mathrm{K}, P_{2}=8 \mathrm{bar}, C_{P} / R=11 / 2$ (e) $T_{1}=305 \mathrm{K}, P_{1}=1.5 \text { bar, } T_{2}=496 \mathrm{K}, P_{2}=7 \text { bar, } C_{P} / R=4$