chemistry

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1) Calculate the specific heat capacity (J/g oC) of iron, if a 803 g sample lost 937.4 J of heat energy in going from an initial temperature of 5.50 oC to a final temperature of 2.90 oC.

2)Calculate the final temperature (oC) of a 243 g sample of water originally at a temperature of 84.6 oC that lost 73640 J of heat energy.

  • chemistry -

    1.
    -q = mass x sp.h. x (Tfinal-Tinitial)

    2.
    -q = mass x sp.h. x (Tfinal-Tinitial)

  • chemistry -

    nk

  • chemistry -

    Calculate the final temperature of 290mL of water initially at 31∘C upon absorption of 20kJ of heat.

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