Homework Help: Chemistry

Posted by Dorian on Thursday, February 3, 2011 at 8:01am.

The heat capacity of liquid water is 4.18 J/g•C and the heat of vaporization is 40.7 kJ/mol. How many kilojoules of heat must be provided to convert 1.00 g of liquid water at 67C into 1.00 g of steam at 100C?

A. 22.7 kJ
B. 40.8 kJ
C. 2.2 kJ
D. 2,400 J
E. 40.8 J

Chemistry - bobpursley, Thursday, February 3, 2011 at 9:02am
add the heat to warm the water to 100C, to the heat to vaporize it.
Chemistry - Kristina, Monday, February 7, 2011 at 1:03am
How much energy does it take to convert 12.5 grams of water to water vapor?

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