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19 May, 08:49

How much heat is evolved when 1260 g of water condenses to a liquid at 100.°C?

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Answers (2)
  1. 19 May, 12:03
    0
    To solve this you need the value for ΔHvap for water, which is a constant that tells you how much energy is used/released when water changes it's physical state from vapour to liquid, or liquid to vapor.
  2. 19 May, 12:22
    0
    Moles H2O = 1233 g / 18 g/mol=68.5 68.5 x 40.7 = 2788 kJ
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