Water vapor (H2O) is heated during a steady-flow process at 1 atm from 298 to 3000 K at a rate of 0.2 kg/min. Determine the rate of heat supply needed during this process, assuming (a) some H2O dissociates into H2, O2, and OH and (b) no dissociation ta

The volumetric analysis of a mixture of gases is 25 percent oxygen, 35 percent nitrogen, 5 percent carbon dioxide, and 35 percent methane. Calculate the apparent specific heats and molecular weight of this mixture of gases. The universal gas constant is Ru= 8.314 kJ/kmol-K. Use the table containing the molar mass, gas constant, and critical-point properties and the table containing the ideal-gas specific heats of various common gases. The apparent molecular weight of this mixture of gases is The constant-pressure specific heat of the mixture is The constant-volume specific heat of the mixture is kg/kmol. kJ/kg-K. kJ/kg-K.

A mixture of 5 kg of Hydrogen and 26 kg of Nitrogen are contained in a piston cylinder assembly at a pressure of 6.78 MPa and a temperature of 125 K. heat is transferred to the device and the mixture expands at a constant pressure until the temperature rises to 135 K. Determine the heat transfer in kJ during the process by treating the mixture as a non-ideal gas and using the Amagat's law.

A mixture of 30 percent (by mass) ethane and 70 percent methane is to be mixed in a 100-m3 vessel at 130 kPa and 25°C. If the vessel is initially under vacuum, at what pressure must the ethane be added before the methane is added?