Chemistry, 26.03.2021 01:00 turboslayer
Butane C4H10 (g),(Hf = β125.7), combusts in the presence of oxygen to form CO2 (g) (Delta. Hf = β393.5 kJ/mol), and H2O(g) (Delta. Hf = β241.82) in the reaction: 2 upper C subscript 4 upper H subscript 10 (g) plus 13 upper O subscript 2 (g) right arrow 8 upper C upper O subscript 2 plus 10 upper H subscript 2 upper O (g). What is the enthalpy of combustion, per mole, of butane? Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants.
Answers: 2
![\Delta H=[n\times H_f_{products}]-[n\times H_f_{reactants}]](/tpl/images/1221/8923/4f68b.png)
![\Delta H=[8\times H_f_{CO_2}+10\times H_f_{H_2O}]-[2\times H_f_{C_4H_{10}+13\times H_f_{O_2}}]](/tpl/images/1221/8923/e94db.png)
![\Delta H=[(8\times -393.5)+(10\times -241.82)]-[(2\times -125.7)+(13\times 0)]](/tpl/images/1221/8923/8343f.png)
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Butane C4H10 (g),(Hf = β125.7), combusts in the presence of oxygen to form CO2 (g) (Delta. Hf = β393...
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