Standard State

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Posts: 61
Joined: Fri Sep 28, 2018 12:25 am

Standard State

Postby 505095793 » Wed Jan 30, 2019 10:15 am

Why must our gas or solution be put into standard state? (1 atm or 1M)

Posts: 60
Joined: Fri Sep 28, 2018 12:25 am

Re: Standard State

Postby LorenzoDuvergne3I » Wed Jan 30, 2019 11:14 am

It seems like it is just the easiest to make uniform and work with for any non quantity dependent property of the gas/solution.

Clarissa Cabil 1I
Posts: 66
Joined: Fri Sep 28, 2018 12:19 am

Re: Standard State

Postby Clarissa Cabil 1I » Wed Jan 30, 2019 12:10 pm

When we need to calculate certain values, the gas/ solution must be at a standard state so that our units can match the quantity we are looking for at the end. Nuances in certain conditions can also affect what constants/units we use.

Hope this helps!

Eva Guillory 2E
Posts: 44
Joined: Fri Sep 28, 2018 12:22 am

Re: Standard State

Postby Eva Guillory 2E » Wed Jan 30, 2019 1:22 pm

In addition, when pure elements are in their standard states, their standard enthalpies of formation are equal to zero, which makes solving for the enthalpy of a reaction easier.

Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

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