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100-g sample of substance is heated to 100˚C and placed into calorimeter cup containing 150 g of water at 25˚C. The sample raises the temperature of water to 32.1. What is the specific heat of the substance?

  • Physics -

    The amount of heat transfered to the water is 150*7.1*1.0 = 1065 calories.

    Removing that amount of heat from 100 g of the substance caused its temperature to drop 67.9 C. The specific heat can be calculated from that information.

    C = Q/(M*deltaT) = 0.157 Cal/gm C
    = 0.657 J/g K

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