The standard heat of reaction for the oxidation of ammonia is given below: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(v) : ΔHr = -904.7 kJ/mol One hundred moles of NH3 and 200 moles of oxygen at 250C are fed into a reactor where ammonia is completely consumed. The product gas leaves at 300C. Determine the rate at which heat must be transferred to or from the reactor, assuming operation at 1atm. Data: Tref = 250C Cp(oxygen gas ) at 300C = 0.0308 kJ/mol0C ; Cp(NO gas) at 300C = 0.0307 kJ/mol0C Cp(water vapour) at 300 = 0.0348 kJ/mol0C