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From the following data, calculate the e...

From the following data, calculate the enthalpy change for the combustion of cyclopropane at `298K`. The enthalpy of formation of `CO_(2(g)),H_(2)O_((l))` and `Propen e_((g))` are `-393,-285.8` and ` 20.42 kJ mol^(-1)` respectively. The enthalpy of isomerisation of cyclopropane to propene is `-33.0kJ mol^(-1)`

Text Solution

Verified by Experts

Given
`DeltaH=-33.0kJ …(2)` ltbr. `C+O_(2) rarr CO_(2(g)), DeltaH=-393.5kJ …(2)`
`H_(2)+(1)/(2)O_(2) rarr H_(2)O_((l)), DeltaH=-285.8kJ …..(3)`
`3C+3H_(2) rarr CH_(3).CH=CH_(2(g)), DeltaH=20.42kJ …(4)`
`eq. (4)-(1)` yields

`DeltaH=53.42kJ ...(5)`
`[3xx(2)+3xx(3)]-(5)` yields
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From the following data, calculate the enthalpy change for the combustion of cyclopropane at 298 K. The enthalpy of formation of CO_(2)(g), H_(2)O(l) and propene (g) are - 393.5, -285.8 and 20.42 kJ "mol"^(-1) respectively.The enthalpy of isomerisation of cyclopropane to propene is -33.0 kJ "mol"^(-1) .

From the following data, calculate the enthalpy change for the combustion of cyclopropane at 298 K. The enthalpy of formation of CO_2(g), H_2O(l) and propene (g) are -393.5, -285.8 and 20.42 kJ "mol"^(-1) respectively. The enthalpy of isomerisation of cyclopropane to propene is – 33.0 kJ "mol"^(-1)

Knowledge Check

  • The enthalpies of formation of CO_(2(g)), H_(2)O_((l)) and C_(2)H_(4(g)) are respectively -393.5, -286 and +52.3 kJ mol^(-1) the enthalpy change for the combustion of C_(2)H_(4(g)) is

    A
    `-1306 kJ mol^(-1)`
    B
    `-1411.3 kJ mol^(-1)`
    C
    `-509.7 kJ mol^(-1)`
    D
    `-731.5 kJ mol^(-1)`

  • The enthalpies of formation of CO and CO_(2) are -110.5 KJ mol^(-1) and -393.5 KJ mol^(-1) respectively. The enthalpy of combustion of carbon monoxide is

    A
    `-110.5 KJ mol^(-1)`
    B
    `-283.0 KJ mol^(-1)`
    C
    `504.0 KJ mol^(-1)`
    D
    `221.2 KJ mol^(-1)`

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    From the following data, calculate the enthalpy change for the combustion of cyclopropane at 298 K. The enthalpy of formation of CO_(2)(g), H_(2)O(l) and CH_(3)CH=CH_(2)(g) are -393.5, -285.8 and 20.42 kJ mol^(-1) respectively. The enthalpy of isomerisation of cyclopropane to propene is -33.0 kJ mol^(-1) .

    From the following data, calculate the enthalpy change for the combustion of cyclopropane at298 K.The enthalpy of fomration of CO_(2)(g), H_(2)O(l) and propene (g) are -393.5, -285.8 and 20.42kJ mol^(-1) respectively. The enthalpy of isomerisation of cyclopropane to propene is -33.0 kJ mol^(-1)

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