Start Process engineers Louise and Vincent operate a chiller in series with a flash tank. A chiller is a process unit that decreases the temperature of a process stream. Aliquid mixture of n pentane (PCs Hia) and n-heptane (H, CyH16) enters the chiller at 78.9C and exts at 43.1c with a flow rate of 657 kmol/hr at steady state. The flash tank operates 40.2c, and both n pentane and n-heptane exit in vapor-liquid equilibrium. The exiting liquid stream has a mole fraction of n pentane of 0.482. The ratio of the flow rate of the exiting vapor stream to the exiting liquid stream is 3.56. Determine the following three unknowns Mole fraction of n-pentane in the exiting gas Ex: 1.28 Flow rate of the exiting stream in the gas phase EX 395 kmol/hr Mole fraction of n-pentane entering the flash tank Ex: 0.598 Check Next Feedback