Homework Help: Chemistry

Posted by John on Friday, October 7, 2011 at 9:27pm.

Ethanol (C2H5OH) boils at a temperature of 78.3oC.
What amount of energy, in joules, is necessary to heat to boiling and then completely vaporize a 28.6 g sample of ethanol initially at a temperature of 10.8oC.

The specific heat of ethanol is approximately constant at 2.44 JK-1g-1
The heat of vaporization of ethanol is 38.56 kJ mol-1.

Chemistry - DrBob222, Friday, October 7, 2011 at 11:18pm
John, I think I worked this for you yesterday. Look at yesterday's posts.

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