Relationship between pressure and volume

Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

Relationship between pressure and volume

Are pressure and volume inversely related to each other? If the pressure of a system doubled, would the volume halve?

205007651
Posts: 53
Joined: Tue Nov 13, 2018 12:17 am

Re: Relationship between pressure and volume

You can look at PV=NRT to know the answer to this. If you keep temperature and moles constant and double pressure, then the volume has to halve. It gets trickier if you change more than one variable.

AniP_2D
Posts: 95
Joined: Sat Aug 17, 2019 12:17 am

Re: Relationship between pressure and volume

According to the ideal gas law, PV=nRT, pressure and volume are inversely proportional.

Samuel Tzeng 1B
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Joined: Sat Aug 24, 2019 12:15 am

Re: Relationship between pressure and volume

Yes they're inversely proportional

Jesse H 2L
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Joined: Fri Aug 09, 2019 12:17 am
Been upvoted: 1 time

Re: Relationship between pressure and volume

inversely proportional, and an increase in volume in a system is only recognized if it is the result of change in volume, which is usually assumed unless the problem involves pumping an inert gas into a system

Noe BM 1J
Posts: 50
Joined: Sat Sep 07, 2019 12:17 am

Re: Relationship between pressure and volume

Yes, they are. When you decrease a volume molecules have less space to move around, so they collide more--increasing the pressure. When you increase the volume molecules have more space and therefore, collide less--decreasing the pressure.

Anna Chen 1K
Posts: 104
Joined: Thu Jul 25, 2019 12:18 am

Re: Relationship between pressure and volume

I agree that PV=nRT proves that pressure and volume have an inverse relationship.

205154661_Dis2J
Posts: 109
Joined: Wed Sep 18, 2019 12:21 am

Re: Relationship between pressure and volume

As formerly mentioned, pressure and volume are inversely proportional. When volume decreases, pressure increases. When volume increases, pressure decreases.

Jainam Shah 4I
Posts: 130
Joined: Fri Aug 30, 2019 12:16 am

Re: Relationship between pressure and volume

They are inversely related. When volume decreases the number of moles remain the same, but the frequency of the collisions increase. The particles collide more often and this increases the pressure. When volume increases the particles have more space. They collide less and the pressure decreases.

Ian Morris 3C
Posts: 101
Joined: Wed Sep 18, 2019 12:18 am

Re: Relationship between pressure and volume

They are inversely proportional.

kristi le 2F
Posts: 102
Joined: Thu Jul 11, 2019 12:15 am

Re: Relationship between pressure and volume

Pressure and volume are inversely proportional because conceptually, the smaller the volume/space, the less room the gases have and therefore the higher the pressure.

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