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March 25, 2017

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What mass (in grams) of steam at 100°C must be mixed with 341 g of ice at its melting point, in a thermally insulated container, to produce liquid water at 57.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, and the latent heat of vaporization is 2256 kJ/kg.

  • physics - ,

    add the heats gained, and set the sum to zero.

    Heat melting ice + heat raising temp ice to 57C + heat gained condensing steam + heat lowering condensate temp to 57=0

    .341*333J+.341*4146(57-0)+M*2256+M(4146)(57-100)=0
    solve for Mass (in kilograms). Change it to grams for your answer.

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