[pjuty]

Hi there,
I have problem with this because I don't know how to calculate it.
Example:
Calculate the concentration of the product (RCOOR ester) in the reaction mixture when
esterification is carried out at 60 ° C under reflux (nothing is leaving the reactor). The reaction mixture is stirred and heated until the system is complete in equilibrium.

R-COOH + R-OH = R-COOR + H 2 O

The gas constant is 8.314 J · K -1 · mol -1.
Change of free enthalpy of reaction (Gibbs energy) ΔG r = -2 kJ.mol -1.
The starting concentrations of c0 acid and alcohol are the same and c0 = 1 mol.dm

I tried to calculate it but I get double the product concentration which is nonsensical

Thank you very much for your help

[chenbeier]

What is the formula for dG in consideration of an equilibrium reaction?

[pjuty]

I attached the file as I tried to solve it

[pjuty]

I managed to solve the task

Thank you

[chenbeier]

To solve Gibbs equation is ok, but to solve the equilibrium i would think again.
The start amont is  1 mol of alcohol  and acid at start.
But in equilibrium you have all compounds present.
So develop k again for equilibrium.