2. Expansion Through a Valve Ammonia undergoes the following process: T = 300C P = 50 atm T= ?? P=1 atm Find the temperature of the exit stream before any heat transfer takes place using the following assumptions: (a) Assume that the gas behaves ideally at both state 1 and state 2 (we know this is not true) (b) Assume that the non-ideality in state 1 can be obtained via residual properties in Appendix D