13.66 Ethane (C2H6) gas at 77F, 1 atm enters a well-insulated reactor operating at steady state
and burns completely with air entering at 240F, 1 atm. Determine the temperature of the
products, in F. Neglect kinetic and potential energy effects.
Solution
First of all we should write the equation of the complete combustion i.e
C2H6 + O2 ? aCO + b C + c H2O where a , b, c are the stoichiometric coefficients
Now we will try to calculate the mass of the reactants by applying the ideal gas equation
When we have the value of the mass of reactants, then we can calculate the corresponding
values for our products and the enthalpy lost in the reaction.
Now PH2O / P = NH2O / Ntotal
Ntotal = a+b+c
Hence we can calculate the PH2O therefore we can calculate the temperature corresponding to
this pressure..
13.66 Ethane (C2H6) gas at 77F, 1 atm enters a well-insulated reactor.pdf
1. 13.66 Ethane (C2H6) gas at 77F, 1 atm enters a well-insulated reactor operating at steady state
and burns completely with air entering at 240F, 1 atm. Determine the temperature of the
products, in F. Neglect kinetic and potential energy effects.
Solution
First of all we should write the equation of the complete combustion i.e
C2H6 + O2 ? aCO + b C + c H2O where a , b, c are the stoichiometric coefficients
Now we will try to calculate the mass of the reactants by applying the ideal gas equation
When we have the value of the mass of reactants, then we can calculate the corresponding
values for our products and the enthalpy lost in the reaction.
Now PH2O / P = NH2O / Ntotal
Ntotal = a+b+c
Hence we can calculate the PH2O therefore we can calculate the temperature corresponding to
this pressure.
