What will be the heat of formation of ethane- if the heat of combustion of carbon is ndash-x kJ- heat of formation of water is ndash-y kJ and heat liberated during combustion of ethane is z kJ-mol-

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Air and Its Composition

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What will be the heat of formation of ethane, if the heat of combustion of carbon is –x kJ, heat of formation of water is –y kJ and heat liberated during combustion of ethane is z kJ/mol?

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- x

k J

- y

k J

- z

k J

(Δ_{f} H_{298}^{\circ})

^{'} - x^{'} k J

^{'} - y^{'} k J

^{'} z^{'} k J

1410.0 k J . m o l^{- 1}

C O_{2}

H_{2} O

393.3 k J

286.2 k J

- 94, - 68.3

- 373 k c a l / m o l

k c a l / m o l

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