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mollykins | 16:18 Thu 02nd Dec 2010 | Science
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Whats the difference between energy change and standard enthalpy change?
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Energy - Symbol - E. The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. It is measured by the amount of work done, usually in joules or watts.

Enthalpy - Symbol - H. A thermodynamic function of a system, equivalent to the sum of the internal energy of the system plus the product of its volume multiplied by the pressure exerted on it by its surroundings.
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Doesn't really help me society. I had a question that asked me to calculate the energy change during a reaction, then another that says calculate the standard enthalpy change, of the same experiment!
Question Author
Someone came online on facebook that could help, the energy change it was asking for was for the reaction and the S.E.C is per 1 mol.
Molly I believe I answered the question you asked; I explained the differences. No?
Question Author
Kinda not really you didn't specify that enthalpy was using 1 mol of stuff.
Molls, that's because I thought you already knew that.
Question Author
No, well i did, but I'd forgotten . . .

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