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Chemistry homework help watch

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    Hiii

    I need help with my chemistry homework. I need to find the energy value and energy per gram for this fuel...

    Methanol:
    Mass of water: 50g
    Mass of fuel burned: 1.7g
    Starting water temperature: 22c
    End temperature of water: 79c
    Temperature change: 57c

    What equation do I use to work it out?

    Thanks!
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    If its AS I believe its Q= mass x C x change in temperature and then work out amount in moles using mass ÷ molar mass.

    C equals 4.18 or 4.2 (both are acceptable I believe)

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    Q= energy value and it is a positive sign as it is endothermic.

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    (Original post by Abzey_97)
    Q= energy value and it is a positive sign as it is endothermic.

    Posted from TSR Mobile
    It cannot possibly be endothermic - it's a combustion reaction!
 
 
 
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