ike you to determine whether this reaction is exo- or endothermic, but you need more information The following questions will walk you through this process. 2. Given the reaction and thermochemical data below, use Hess' Law to calculate A Hxn for the gas-phase combustion of butadiene. 11 C4H6 (g) + 02 (g) 4 CO2 (g) + 3 H2O(1) A Han -? kJ 2 H2 (g) + O2 (g) 2 H2O(g) A H; =-484 kJ C4Ha (g) + 6 02 (g) 4 CO2 (9) + 4 H20(g) AHxn -2527 kJ C4Ha (g) C4H6 (g) + H2 (g) A Han-+132 kJ H2O (1) H20 (g) A Hap - +41 kJ

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Chapter1: Chemical Foundations
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I'd like you to determine whether this reaction is exo- or endothermic, but you need more information
first. The following questions will walk you through this process.
2. Given the reaction and thermochemical data below, use Hess' Law to calculate A Hxn for the
gas-phase combustion of butadiene.
11
C4H6 (g) +
O2 (g)
2
4 CO2 (g) + 3 H20(1)
AHn =? kJ
rxn
2 H2 (g) + 02 (g)
2 H20 (g)
A H; = -484 kJ
C4H8 (g)
+ 6 02 (9)
4 CO2 (g) + 4 H2O(g)
-2527 kJ
C4H8 (g)
C4H6 (g) + H2 (g)
A Han =+132 kJ
'rxn
H2O (1)
H20 (g)
A Han = +41 kJ
vap
Transcribed Image Text:I'd like you to determine whether this reaction is exo- or endothermic, but you need more information first. The following questions will walk you through this process. 2. Given the reaction and thermochemical data below, use Hess' Law to calculate A Hxn for the gas-phase combustion of butadiene. 11 C4H6 (g) + O2 (g) 2 4 CO2 (g) + 3 H20(1) AHn =? kJ rxn 2 H2 (g) + 02 (g) 2 H20 (g) A H; = -484 kJ C4H8 (g) + 6 02 (9) 4 CO2 (g) + 4 H2O(g) -2527 kJ C4H8 (g) C4H6 (g) + H2 (g) A Han =+132 kJ 'rxn H2O (1) H20 (g) A Han = +41 kJ vap
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