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Heat Required to Convert Water to Vapour

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How many kilojoules of heat are required to convert 34.3 g H2O from liquid at 18.0 degrees Celsius to vapor at 32.8 degrees Celsius?

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First you need to raise the water from 18C to 32.8C:
Q=mcdeltaT = 34.3*4.186*(32.8-18) = 2125 (J)
Also you need heat of evaporation for ...

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