In some parts of the world, butadiene was produced from ethanol, C2H6O by the unbalanced reaction: C2H60 (g) → C4H6 (g) + H20 (g) + H2 (g) 1. Balance the above reaction. 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 H,xn for the gas-phase combustion of butadiene. 11 O2 (g) = ? kJ C4H6 (g) + 4 CO2 (g) + 3 H20(1) - 2 H20 (g) A H; = -484 kJ 2 H2 (g) + O2 (g) + 6 02 (9) 4 CO2 (g) + 4 H20 (g) AHxn =-2527 kJ C4H8 (g) AHixn = +132 kJ C4H8 (g) C4H6 (g) + H2 (g) AHvap = +41 kJ H20(1) H20 (g)

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In some parts of the world, butadiene was produced from ethanol, C2H&O by the unbalanced reaction:
C2H60 (g) → C4H6 (g) + H20 (g) + H2 (g)
1. Balance the above reaction.
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 H,xn for the
gas-phase combustion of butadiene.
11
O2 (g)
= ? kJ
C4H6 (g) +
4 CO2 (g) + 3 H20(1)
-
2 H2O(g)
A H; = -484 kJ
2 H2 (g) + O2 (g)
+ 6 02 (9)
4 CO2 (g) + 4 H2O(g)
AHxn
=-2527 kJ
C4H8 (g)
AHxn
=+132 kJ
C4H8 (g)
C4H6 (g) + H2 (g)
AHvap
= +41 kJ
H20 (1)
H2O (g)
Transcribed Image Text:In some parts of the world, butadiene was produced from ethanol, C2H&O by the unbalanced reaction: C2H60 (g) → C4H6 (g) + H20 (g) + H2 (g) 1. Balance the above reaction. 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 H,xn for the gas-phase combustion of butadiene. 11 O2 (g) = ? kJ C4H6 (g) + 4 CO2 (g) + 3 H20(1) - 2 H2O(g) A H; = -484 kJ 2 H2 (g) + O2 (g) + 6 02 (9) 4 CO2 (g) + 4 H2O(g) AHxn =-2527 kJ C4H8 (g) AHxn =+132 kJ C4H8 (g) C4H6 (g) + H2 (g) AHvap = +41 kJ H20 (1) H2O (g)
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