A gas at upstream condition (T1 ,P1) is throttled in a downstream pressure of 1.2 bar. Use the Redlich / Kwong equation to estimate the downstream temperature and ΔS of the gas for one of the following:
Carbon dioxide, with T1 = 350 K and P1 = 80 bar.
Ethylene, with T1 = 350 K and P1 = 60 bar.
Nitrogen, with T1 = 250 K and P1 = 60 bar.
Propane, with T1 = 400 K and P1 = 20 bar