A well insulated gas cylinder containing ethylene at 85 bar and 25 C is exhausted until the pressure drops to 10 bar. This process occurs fast sufficient that no heat transfer occurs between the gas and the cylinder walls, however not therefore rapidly as to produce large velocity or temperature gradients within the cylinder.
A) Compute the finals temperature of the ethylene within the cylinder.
B) Explain what fraction of ethylene remaining in the cylinder is present as a liquid?