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The heat of combustion of solid benzoic ...

The heat of combustion of solid benzoic acid at constant volume is `-321.30 kJ` at `27^(@)C`. The heat of combustion at constant pressure is

A

`-321.30-300R`

B

`-321.30 +300R`

C

`-321.30-150R`

D

`-321.30-900R`

Text Solution

AI Generated Solution

To find the heat of combustion of solid benzoic acid at constant pressure, we can use the relationship between the heat at constant volume (ΔU) and the heat at constant pressure (ΔH). The equation we will use is: \[ \Delta H = \Delta U + \Delta nRT \] Where: - \(\Delta H\) = heat of combustion at constant pressure ...
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Knowledge Check

  • The heat of combustion of solid benzoic acid at constant volume is -321.3 kJ at 27 degree Celcius . The heat of combustion at constant pressure is

    A
    `-321.3 - 300R`
    B
    `-321.30 + 300R`
    C
    `-321.3 - 150R`
    D
    `-321.3 + 900R`

  • If the heat of combustion of carbon monoxide at constant volume and at 17^@ C is -283.3 kJ, then its heat of combustion at constant pressure is _________ . (R = 8.314 J kelvin ^-1 mol^-1 )

    A
    `-284.5`kJ
    B
    284.5 kJ
    C
    384.5 kJ
    D
    `-384.5`kJ

  • If the heat of combustion of carbon monoxide at constant volume and at 17^(@)C is - 283.3 kJ , then its heat of combustion at constant pressure (R=8.314 J degree ^(-1) mol^(-1)

    A
    `- 284.5` kJ
    B
    284.5 kJ
    C
    384.5 kJ
    D
    `- 384.5 kJ`

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