# How can Fischer esterification equilibrium be shifted to produce more ester?

Nov 23, 2015

You can shift a Fischer esterification in the product direction either by (a) using a large excess of one reactant or (b) by removing one of the products.

#### Explanation:

The equation for a Fischer esterification is

$\text{RCOOH + R'OH" stackrelcolor (blue)("acid")(⇌) "RCOOR'" + "H"_2"O}$

According to Le Châtelier's Principle, we can shift the position of equilibrium to the right either by adding an excess of a reactant or by removing one of the products.