difference between deltaH, deltaE, and q?

[gooperwooper]

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i'm not really getting the relationship these concepts have to each other, anyone care to explain it to me? 🙂

 

[DAT Destroyer]

i'm not really getting the relationship these concepts have to each other, anyone care to explain it to me? 🙂

Delta H and q are the same assuming constant PRESSURE. Delta E is reserved for internal energy, and is the sum of the heat at constant pressure, hence we use q.....and the work done. For your purposes, use delta H and q interchangeably. For a nice discussion on this, Brown and LeMay General text does a nice job, as well as David Klein Organic Chemistry.

Hope this helps.

Dr. Jim Romano