Heptane (c7h16) is burnt with 10 per cent less than the stoichiometric amount of air. determine the amount of substance of each product per kilomole of heptanes burnt wher the products temperature is 2000 k. at this temperature the water gas dissociation constant (ph2o)(pco)/ ph2) (pco2) is 4.259.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater