Ethane (c2h6) is burned at atmospheric pressure with a stoichiometric amount of air as the oxidizer. determine the heat rejected, in kj/kmol fuel, when the products and reactants are both at 25c, and the water vapor appears in the products as water vapor. ( 1,427,820 kj/kmol)

heat rejected =-1427820 KJ/mol of

Explanation:

Fuel ethane

Burning Temperature = T =

Pressure = P = 1 atm

The stiochiometric equation for this reaction is

The enthalpy of the reaction is given as

=

=

Where

N = number of poles

= -393520 KJ/mol

Taking enathalpy of formation of = -241820 KJ/mol

Taking enathalpy of formation of = -84680 KJ/mol

by putting values

hc=-1427820 KJ/mol of

heat rejected = heat of enthalpy of formation

heat rejected =-1427820 KJ/mol of

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