Inert gas

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Inert gas

Postby JustinHorriat_4f » Sun Jan 12, 2020 6:58 pm

What is the explanation behind why when inert gas is added and pressure increases, reactant product and volume still stay the same?

Niharika 1H
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Joined: Thu Jul 25, 2019 12:16 am

Re: Inert gas

Postby Niharika 1H » Sun Jan 12, 2020 7:03 pm

Adding an inert gas affects pressure, but not the individual partial pressures of the gasses. So, the Kp remains constant, and the reaction isn't shifted.

Chris Charton 1B
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Re: Inert gas

Postby Chris Charton 1B » Sun Jan 12, 2020 7:23 pm

Reactant and Product concentrations will remain the same as volume does not change, therefore Kp is unchanged.

Morgan Carrington 2H
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Joined: Wed Nov 14, 2018 12:22 am

Re: Inert gas

Postby Morgan Carrington 2H » Sun Jan 12, 2020 10:23 pm

The addition of inert gases does change the pressure of the system, but the volume remains the same. The number of reactants and products remains the same, therefore there is no reason for a q value to be calculated.

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Re: Inert gas

Postby 005162520 » Sun Jan 12, 2020 10:28 pm

why doesn't the individual partial pressure change and the pressure of the system does change?

Angela Wu-2H
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Joined: Fri Aug 30, 2019 12:16 am

Re: Inert gas

Postby Angela Wu-2H » Sun Jan 12, 2020 11:56 pm

To clarify, by "inert gas", you guys are referring to mostly helium and the noble gasses right? These are inert gasses because they will not react due to their full valence shells?

Keerthana Sivathasan 2E
Posts: 101
Joined: Wed Sep 18, 2019 12:22 am

Re: Inert gas

Postby Keerthana Sivathasan 2E » Mon Jan 13, 2020 9:44 am

This is supposed to show that even though pressure was changed, the equilibrium didn't shift, thus showing that equilibrium doesn't shift in response to changes in pressure, but changes in concentration. In this case, there were no changes in moles or volume, so concentration didn't change.

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