When forming rate laws do we include solids and liquids?

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Harjas Sabharwal 1G
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Joined: Sat Jul 22, 2017 3:01 am

When forming rate laws do we include solids and liquids?

Postby Harjas Sabharwal 1G » Sun Mar 04, 2018 6:32 pm

When writing rate laws do we include solids and liquids in the rate law expression?

Shawn Patel 1I
Posts: 54
Joined: Thu Jul 27, 2017 3:01 am

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

Postby Shawn Patel 1I » Sun Mar 04, 2018 6:44 pm

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.

Manasvi Paudel 1A
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am

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

Postby Manasvi Paudel 1A » Sun Mar 04, 2018 7:45 pm

The concentration of solids and liquids does not affect the reactant amount at equilibrium so they are disregarded.

Cassandra Mullen 1E
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Re: When forming rate laws do we include solids and liquids?

Postby Cassandra Mullen 1E » Sun Mar 04, 2018 8:36 pm

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.


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