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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

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

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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