Question
How many kilocalories ( Kcal) of heat are needed to vaporize 35.0 grams of water to its vapor at 100 Celsius? Heat of vaporization Of H20=540 calories /1g H2O
Answers
q = 540 cal/g x 35 g = ? calories (note g calcels and leaves cal)
Then convert to kcal.
Then convert to kcal.
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