Mean bond Enthalpy vs Enthalpy Change
Hey guys
I've been wondering about this for a while.Are there two different equations for calculating mean bond enthalpy and Enthalpy change.
Is mean bond Enthalpy (Sum of bonds in reactants) - (Sum of bonds in products)
Whereas; Enthalpy change is (Sum enthalpies of products)-(Sum enthalpies of reactants)?
Thankyou
Posted from TSR Mobile
I've been wondering about this for a while.Are there two different equations for calculating mean bond enthalpy and Enthalpy change.Is mean bond Enthalpy (Sum of bonds in reactants) - (Sum of bonds in products)
Whereas; Enthalpy change is (Sum enthalpies of products)-(Sum enthalpies of reactants)?
Thankyou
Posted from TSR Mobile
Yeah you are indeed correct.
Enthalpy for the bond is breaking - making.
There is no ideal equation.
I just use the Hess cycle to work it out.
Posted from TSR Mobile
Enthalpy for the bond is breaking - making.
There is no ideal equation.
I just use the Hess cycle to work it out.
Posted from TSR Mobile
Original post by zed963
Yeah you are indeed correct.
Enthalpy for the bond is breaking - making.
There is no ideal equation.
I just use the Hess cycle to work it out.
Posted from TSR Mobile
Enthalpy for the bond is breaking - making.
There is no ideal equation.
I just use the Hess cycle to work it out.
Posted from TSR Mobile
Thankyou
That clears it all upI kept getting the right values for Enthalpy but with a different sign lol
Posted from TSR Mobile
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