A highly toxic gas is discovered to have a negative Joule-Thomson coefficient of -8.00°C/atmosphere. Since this coefficient is negative, the gas heats rather than cools on expansion, and thus it can be made into a heat pump. Determine
a. The exhaust temperature as this gas expands from 20.0°C at 100. atm to 1.00 atm.
b. The coefficient of performance of this unit as a heat pump if it is compressed with an isentropic efficiency of 65.0%.