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chemistry

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How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C?

For water:
s = 4.179 J/g °C
Hfusion = 6.01 kJ/mol
Hvap = 40.7 kJ/mol

  • chemistry - ,

    q1 = heat required to move T from zero C to 100 C.
    q1 = mass water x specific heat water x (Tfinal-Tinitial). Tf = 100 C; Ti = 0 C.

    q2 = heat to vaporize liquid water @ 100 C to steam at 100 C.
    q2 = mass water x delta Hvap.

    qtotal = q1 + q2.

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