For a particular isomer of Cg H₁8, the combustion reaction produces 5108.7 kJ of heat per mole of Cg H₁8 (g) consumed, under standard conditions. 18 25 Cg H18 (g) + --0₂(g) 8 CO₂(g) + 9 H₂O(g) AH rxn=-5108.7 kJ/mol 18 What is the standard enthalpy of formation of this isomer of Cg H₁g (g)? Standard enthalpy of formation values can be found in this table of thermodynamic values. AH; = kJ/mol

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Chapter6: Thermochemistry
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Problem 94E: The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene...
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For a particular isomer of Cg H₁g, the combustion reaction produces 5108.7 kJ of heat per mole of Cg H₁ (g) consumed, under
standard conditions.
18⁹
18
C8H₁8 (g) +
25/ 02(g) 8 CO₂(g) + 9 H₂O(g)
2
AH; =
ΔΗ
AH ixn
= -5108.7 kJ/mol
What is the standard enthalpy of formation of this isomer of Cg H₁8 (g)? Standard enthalpy of formation values can be found in
this table of thermodynamic values.
8
18
kJ/mol
Transcribed Image Text:O Macmillan Learning For a particular isomer of Cg H₁g, the combustion reaction produces 5108.7 kJ of heat per mole of Cg H₁ (g) consumed, under standard conditions. 18⁹ 18 C8H₁8 (g) + 25/ 02(g) 8 CO₂(g) + 9 H₂O(g) 2 AH; = ΔΗ AH ixn = -5108.7 kJ/mol What is the standard enthalpy of formation of this isomer of Cg H₁8 (g)? Standard enthalpy of formation values can be found in this table of thermodynamic values. 8 18 kJ/mol
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