Question

calculate the heat of formation of ethane c + o2 = co2 ∆h= -394kj/mole
answer plzzzzz ????
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Answer 1

Given:-

C

2

H

6

(g)

⟶2C

(s)

+3H

2

(g)

ΔH=31kJ/mol

Therefore,

2C

(s)

+3H

2

(g)

⟶C

2

H

6

(g)

ΔH=−31kJ/mol

As we know that the heat of formation is same as the heat of reaction when one mole of the product is formed.

Hence the heat of formation of ethane is −31kJ/mol.