Methane gas undergoes a continuous throttling process from upstream conditions of 40C and 20 bars to a downstream pressure of 1 bar. What is the gas temperature on the downstream side of the throttling device? An expression for the molar ideal gas heat capacity of methane is J Cp = 19.25 +0.05237 +1.197 x 10-572 1.132 x 10-873; T[=]K, Cp[=] mol K = Follow the path of residuals using Eq. virial truncated to second term