Equilibrium Constant and Temperature

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

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

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

annabel 2A
Posts: 67
Joined: Fri Sep 28, 2018 12:18 am

Equilibrium Constant and Temperature

When asked to calculate the equilibrium constant from deltaG°=-RTlnK, will we always be told what temperature to calculate it at?

For example, on Karen's Gibbs Free Energy worksheet #1d, how do we know what temperature to calculate the equilibrium constant at?

Kristen Kim 2K
Posts: 70
Joined: Fri Sep 28, 2018 12:16 am

Re: Equilibrium Constant and Temperature

The assumption for delta G standard is that the temperature is at 25 degrees C or 298 K.

Mark 1D
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Re: Equilibrium Constant and Temperature

i believe standard temperature is 25 C. /298 K, and the question may also state it