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Don't understand Enthalpy

 
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Sep8-11, 01:38 PM   #1
 

Don't understand Enthalpy

What is Enthalpy? I mean how is it different than heat. Also Enthalpy= change in energy+pressure*(change in volume). I don't understand where the PV comes into play in this equation.
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Sep9-11, 06:55 AM   #2
 
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Have you read your book, or wikipedia? What do the say?

You have to show your attempts before receiving help. This is a forum policy.
Sep13-11, 09:01 AM   #3
 
Quote by abcbac View Post
What is Enthalpy? I mean how is it different than heat. Also Enthalpy= change in energy+pressure*(change in volume). I don't understand where the PV comes into play in this equation.
It can also be usefull to look around in this forum, for example at:
http://www.physicsforums.com/showthread.php?t=338573
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