mariyammmmmm mariyammmmmm
  • 15-02-2017
  • Physics
contestada

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

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whydoitry
whydoitry whydoitry
  • 22-02-2017
The  heat  required to completely boil away 0.200 kg of water is 4.52 × 102 kJ.
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scme1702
scme1702 scme1702
  • 22-02-2017
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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