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30 September, 11:31

How much heat is needed to raise the temperature of 5g of water by 20oC?

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  1. 30 September, 11:43
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    Required Heat = Q

    Q = Mass * specific heat of water * change in temp.

    Q = 5g * 1g/cal*degC * 20degC

    Q = 100 cal of heat is required

    To convert calories to Joules,

    1 cal = 4.184 Joules

    100cal = 418.4 J of heat is needed
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