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3 years ago

12

Predict the enthalpy of reaction from the average bond enthalpies for the following reaction: 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O

(g)
Bond
Enthalpy (kJ/mol)
H―H
436.4
H―O
460
C―H
414
C―C
347
C═C
620
C―O
351
O―O
142
O═O
498.7
C═O
745
C═O
(in carbon
dioxide)
799

1 answer:

Vitek1552 [10]3 years ago

8 0

Answer:

B

Explanation:

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