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The heat of vaporization of water is 540 cal/g. How many calories would be needed to convert 3 moles of water to vapor?

1 Answer

Jun 23, 2016

#Q=3*molxx18.01*g*mol^-1xx540*cal*g^-1#

#~=# #2500*cal#

Explanation:

Note that here we consider the enthalpy of vaporization ONLY.

Both the water and the steam are considered to be at #100# #""^@C#.

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