## Delta Hc

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

nelms6678
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

### Delta Hc

An exam question asked for the value of delta H(c) with given values of 1.000 grams tropinone, heat capacity 25.950kj/C, and a temp increase from 25.262 C to 25.993.
The equations used were q = (Cv)(delta T) and then delta H(c) = q(rxn)/mols burned

What are these two equations?

Ashley Macabasco 2K
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

### Re: Delta Hc

I believe that the first equation q = (Cv)(delta T) stems from the equation q=n(C)(deltaT T). The first equation does not include mole because the C value given is in terms of kj/C and so I believe that you can assume that the moles were already taken into account. I am unsure of where the second equation is from.

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