Determine the mole fractions of a gas mixture that consists of 75% CH4 and 25% CO₂ by mass. Also determine the gas constant of the mixture.

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.

What is the molecular weight, enthalpy (kJ/kg), and entropy (kJ/(kg K)) of a gas mixture at P = 1000 kPa and T = 1000 K, if the mixture contains the following species and mole fractions? Species 3₁ CO₂ H₂O N₂ CO 0.10 0.15 0.70 0.05

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?

The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In the first step of the Ostwald process, ammonia is reacted with oxygen gas to produce nitric oxide and water. What is the maximum mass of H2OH2O that can be produced by combining 79.3 g79.3 g of each reactant? 4NH3(g)+5O2(g)⟶4NO(g)+6H2O(g)