Pressure and Moles

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Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Pressure and Moles

Postby Sophia Dinh 1D » Fri Feb 14, 2020 1:33 pm

When counting moles for which way the equilibrium shifts, do you just count the coefficients or do you need to multiply that with the subscripts as well?

Amanda Lin 2I
Posts: 101
Joined: Sat Aug 17, 2019 12:15 am

Re: Pressure and Moles

Postby Amanda Lin 2I » Fri Feb 14, 2020 2:18 pm

You just count the coefficients to determine the equilibrium shift.

KnarGeghamyan1B
Posts: 102
Joined: Fri Aug 09, 2019 12:15 am

Re: Pressure and Moles

Postby KnarGeghamyan1B » Fri Feb 14, 2020 2:32 pm

Add up the coefficients of the products, add up the coefficients of the reactants, then subtract to find the total change in moles for your equation.

Abhi Vempati 2H
Posts: 104
Joined: Fri Aug 09, 2019 12:17 am

Re: Pressure and Moles

Postby Abhi Vempati 2H » Sat Feb 15, 2020 12:12 am

Count the moles of gas on each side by counting the coefficients, which will help you determine the correct way equilibrium shifts.

kim 2I
Posts: 105
Joined: Thu Jul 25, 2019 12:17 am

Re: Pressure and Moles

Postby kim 2I » Sat Feb 15, 2020 12:29 am

Just the coefficients are counted for the number of moles. When pressure is increased, the equilibrium shifts to the side where there are less moles.

Jesalynne 2F
Posts: 100
Joined: Wed Sep 18, 2019 12:18 am

Re: Pressure and Moles

Postby Jesalynne 2F » Sun Feb 16, 2020 5:24 pm

In order to see which way the reaction will shift you would count the coefficients.

John Liang 2I
Posts: 102
Joined: Fri Aug 30, 2019 12:18 am

Re: Pressure and Moles

Postby John Liang 2I » Sun Feb 16, 2020 5:40 pm

You would only regard the coefficients because they represent the amt of whole molecules. the subscripts only show how many atoms there are in each molecule. you can think of the subscripts as too small to shift while the coefficients are.

Vinita Saxena 2I
Posts: 58
Joined: Fri Aug 09, 2019 12:16 am

Re: Pressure and Moles

Postby Vinita Saxena 2I » Sun Feb 16, 2020 5:49 pm

Just count the coefficients since the subscripts are part of the molecule, not separate molecules.


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