chemistry

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If 2.10 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 28°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 34°C to 57°C?

  • chemistry -

    Q=mc∆t
    or
    mc=Q/∆t

    where
    m = mass
    c = specific heat
    delta t = change in temperature

    since we know that m and c are constant and since you know the values of Q and ∆t, just set those pairs of Q and ∆t equal!

    Q1/∆t1 = Q2/∆t2

    solve for Q2

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