October 7, 2015

Homework Help: Chemistry

Posted by Anna on Saturday, April 3, 2010 at 11:58pm.

Why do we put a minus sing in front of the bond enthalpies of the bonds that are being formed?

And why are the enthalpies of formation negative in general?

I also don't understand why we subtract the enthalpy of formation of the reactants from the enthalpy of formation of the products?

Maybe someone could help me understand this.

Answer this Question

First Name:
School Subject:

Related Questions

More Related Questions