expanding the volume

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Katie Bart 1I
Posts: 104
Joined: Sat Aug 24, 2019 12:16 am

expanding the volume

Postby Katie Bart 1I » Tue Jan 21, 2020 10:34 am

Why does expanding the volume shift the reaction towards the side with more moles?

Veronica_Lubera_2A
Posts: 106
Joined: Sat Sep 14, 2019 12:16 am
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Re: expanding the volume

Postby Veronica_Lubera_2A » Tue Jan 21, 2020 10:45 am

So the shortcut is that whenever you increase volume (by decreasing pressure), you shift the equilibrium to the side with more moles of gas. The technical version is that you actually change concentrations using the PV=nRT formula and n/V is concentration (Molarity). If volume changes (with the concentration), so does pressure and vice versa.

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: expanding the volume

Postby 805097738 » Tue Jan 21, 2020 12:55 pm

because the pressure is decreased and in order to minimize this change, the reaction reaction move towards the side with more moles so there is more pressure

Jessica Katzman 4F
Posts: 35
Joined: Mon Jun 17, 2019 7:24 am

Re: expanding the volume

Postby Jessica Katzman 4F » Tue Jan 21, 2020 1:06 pm

When you expand the volume, you are decreasing the pressure, so the reaction shifts toward the side with more moles to minimize the impact of the decrease in pressure of the reaction.


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