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When forming rate laws do we include solids and liquids?

Posted: Sun Mar 04, 2018 6:32 pm
by Harjas Sabharwal 1G
When writing rate laws do we include solids and liquids in the rate law expression?

Re: When forming rate laws do we include solids and liquids?

Posted: Sun Mar 04, 2018 6:44 pm
by Shawn Patel 1I
Hey,
Most of the time we would not include solids and liquids, only gases and aqueous solutions. Water can be included if it is part of the reaction.

Re: When forming rate laws do we include solids and liquids?

Posted: Sun Mar 04, 2018 7:45 pm
by Manasvi Paudel 1A
The concentration of solids and liquids does not affect the reactant amount at equilibrium so they are disregarded.

Re: When forming rate laws do we include solids and liquids?

Posted: Sun Mar 04, 2018 8:36 pm
by Cassandra Mullen 1E
Just like when writing equilibrium constant expressions, the concentration of solids and liquids are essentially constant so they can be omitted in the rate law expression.