Question

calulate heat of combustion of ithane
ich heat of formation of co2
-858.9, C2H6
(02 Is-784.4
(2 H6 = 8 - 82.3 kJ
H2O​

Answer 1

Explanation:

Given:-

C2H6(g)⟶2C(s)+3H2(g)ΔH=31kJ/mol

Therefore,

2C(s)+3H2(g)⟶C2H6(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.

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Answer 2

Answer:

Heya

if I'm not wrong

C 2H 6

(g) ⟶2C

(s) +3H 2(g)

ΔH=31kJ/mol

Therefore,

2C (s)

+3H2(g)

⟶C2

H2(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.

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