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Calculate of heat of formation of ethyle...

Calculate of heat of formation of ethylene from the following data at `20^(@)C` :
`H_(2)(g)+(1)/(2)O_(2)(g) to H_(2)O(l),DeltaH=-65 kcal`
`C(s)+O_(2)(g) to CO_(2)(g),DeltaH=-97 kcal`
`C_(2)H_(4)(g)+3O_(2)(g) to 2CO_(2)(g)+2H_(2)O(l), DeltaH=-340 kcal`

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The correct Answer is:
(16 kcal)
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RC MUKHERJEE-CHEMICAL THERMODYNAMICS-Problems
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  2. One mole of an ideal gas at 300 K expands isothermally and reversibly ...

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