Question

explain why pure liquids and solids can be ignored while writingthe equilibrium constant expression

Answer 1

the concentration of pure solid or liquid remain almost same. i. e. it changes by very very small fraction, so their concentration is ignored while writing expression of equilibrium constant.

Answer 2

Answer:Pure substance(both solid and liquid) :

No. Of moles/volume

Mass/molecular mass/volume

Mass/molecular mass×volume

Density/molecular mass

Explanation:Now the molecular mass and density of pure substance is always fixed and is accounted for in the equilibrium constant. Therefore, the value are not mentioned in the equation of equilibrium.

And also due to the effective conc. stays constant throughout the equation....

..............Hope this helps u......