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I am very confused with Enthalpy problems... I don't know when to use what equation so can someone clear it up for me please?
In my Kaplan book on the enthaly section they gave you these equations and one Hess Law
Equation 1: change in enthalpy = (products) - (reactants)
Law: Hess Law where it states enthalpy of rxn are addidtive
Equation 2: change in enthalpy=(sum of bond energies of bonds broken) - (bonds formed)
I know when a problem gives u bond dissosication problems you u equation 2, but when do you know to use Equation 1 and Hess's law?
In my Kaplan book on the enthaly section they gave you these equations and one Hess Law
Equation 1: change in enthalpy = (products) - (reactants)
Law: Hess Law where it states enthalpy of rxn are addidtive
Equation 2: change in enthalpy=(sum of bond energies of bonds broken) - (bonds formed)
I know when a problem gives u bond dissosication problems you u equation 2, but when do you know to use Equation 1 and Hess's law?
