# Chemistry

Compare the amount of heat required to vaporize a 200.-gram sample of H20(L) at its boiling point to the amount of heat required to melt a 200.-gram sample ofH20(s) at its melting point.

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1. vaporize water:
q = mass x heat vaporization

melt ice
q = mass ice x heat fusion

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2. thanks

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3. how much kj of heat are required to vaporize 42.8 grams of c3 h10 o (deltaH vap=26.5 kj/mol)

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