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    Q2) The enthalpy of combustion of octane is -5470 kJ/mol. Octane (formula C​8H​ ​18)​ was used to heat some water in a copper can. The amount of octane used up was 0.1 g. The amount of water in the can was 100 cm3​ ​ .
    b) Find the temperature rise of the water in the copper can. (Show calculations)

    c) Find the mass of octane that needs to be combusted so that the temperature will rise by 20 o​ ​C. (Show calculations)
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