## Delta Srxn

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

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

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

105169446
Posts: 32
Joined: Fri Sep 28, 2018 12:16 am

### Delta Srxn

In the formula for delta Srxn, we have the sum of the products of Sm minus the sum of the reactant of Sm.
I'm confused about what the "m" of Sm is.

Seohyun Park 1L
Posts: 73
Joined: Fri Sep 28, 2018 12:29 am

### Re: Delta Srxn

The "m" in Sm stands for molar, so Sm means molar entropy.

Irene Zhou 1E
Posts: 73
Joined: Fri Sep 28, 2018 12:18 am

### Re: Delta Srxn

To find the change in entropy, subtract the molar entropy of the products from the reactants.

Kavvya Gupta 1H
Posts: 35
Joined: Fri Sep 28, 2018 12:21 am

### Re: Delta Srxn

the m stands for molar or mass depending on what you are given and what you need to find. If you need to find over kJ/mol and you were given mass you would need to convert to moles. The reason why there is an m is mostly because S is extensive.

005113695
Posts: 59
Joined: Fri Sep 28, 2018 12:15 am

### Re: Delta Srxn

m is just molar! so Sm is molar entropy