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The heat of combustion of liquid ethanol...

The heat of combustion of liquid ethanol is -327.0 kcal calculate the heat of formation of ethanol. Given that the heats of formation of `CO_(2)(g) and H_(2)O(l)` are -94.0 kcal and -68.4 kcal respectively.

Text Solution

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`-66.2` kcal
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Knowledge Check

  • The heat of formation of H_(2)O(l) is -68.0 kcal, the heat of formation of H_(2)O(g) can logically be

    A
    `-68.0` kcal
    B
    `-67.4` kcal
    C
    80.0 kcal
    D
    `-58.3` kcal

  • Calculate the enthalpy of hydrogenation of C_2 H_(4(g)) , given that the enthalpy of formation of ethane and ethylene as -30.2 kcal and +12.5 kcal respectively.

    A
    `-4.8`kcal
    B
    `+7.7`kcal
    C
    `-42.7`kcal
    D
    `-7.7`kcal

  • The heat of formation of H_(2)O(l) is - 68.0 kcal, the heat of formation of H_(2)O(g) is likely to be

    A
    `- 68.0` kcal
    B
    `- 67.4` kcal
    C
    80.0 kcal
    D
    `- 58.3` kcal

    • Similar Questions

    Explore conceptually related problems

    The heat of combustion of ethyl alcohol is -300 kcal. If the heats of formation of CO_(2)(g) and H_(2)O(l) are -9.3 and -68.5 kcal respectively, calculate the heat of formation of ehtyl alcohol.

    The heat of combustion of naphthalene (s) is -123.25 kcal. If the heats of formation of CO_(2)(g) and H_(2)O (l) are -97.0 and -68.4 kcal respectively. Calculate the heat of formation of naphthalene.

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    The value of Delta H for the combustion of C(s) is - 94.4 Kcal. The heat of formation of CO_(2)(g) is :-

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