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    jose626's Avatar
    jose626 Posts: 1, Reputation: 1
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    #1

    Jan 4, 2012, 11:57 AM
    Thermochemistry
    A piece of aluminum foil is placed in a refrigerator and loses 245 joules of heat energy as its temperature drops from 25°C to 3°C. What is the mass of the aluminum foil?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jan 5, 2012, 11:13 PM
    Use

    Q = mcT

    Q = -245
    c should be given
    T = (3-25)
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