A natural gas with the molar analysis 78% CH4, 13% C2H6, 6% C3H8, 1.7% C4H10, 1.3% N2 burns completely with 60% excess air in a reactor operating at steady state. The molar flow rate of the fuel is 1.5 kmol/h and air is 21% O2 and 79% N2 on a molar basis.1. Determine the molar flow rate of the air, in kmol/h.2. Determine mass flow rate of the air, in kg/h 3. Determine the mole fraction of water vapor in the products

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.