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10 June, 11:32

How much heat is required to completely boil away 0.200 kg of water (ΔHv = 2.26 * 103 kJ/kg) ?

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  1. 10 June, 11:48
    0
    The heat required to completely boil away 0.200 kg of water is 4.52 * 102 kJ.
  2. 10 June, 11:59
    0
    We will use the formula:

    Q = ml

    where Q is the heat, m is the mass of substance, and l is the latent heat of vaporization of the substance.

    Q = 0.2 x 2.26 x 10³

    Q = 452 kJ
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