pressure and volume

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Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

pressure and volume

Postby Lindsey Chheng 1E » Wed Jan 22, 2020 10:27 am

how come when pressure doubles, volume halves?

Benjamin Feng 1B
Posts: 102
Joined: Sat Sep 07, 2019 12:19 am

Re: pressure and volume

Postby Benjamin Feng 1B » Wed Jan 22, 2020 11:16 am

Pressure is inversely proportional to volume as seen by the equation PV = nRT. Given that moles and temperature stay constant, when pressure increases, volume must decrease. It's more commonly thought of that you halve the volume to double the pressure rather than changing the pressure.

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

Re: pressure and volume

Postby 805097738 » Wed Jan 22, 2020 12:26 pm

volume and pressure are inversely related. it's easy to answer those questions if you memorize that

Tai Metzger 3K
Posts: 103
Joined: Sat Aug 24, 2019 12:17 am

Re: pressure and volume

Postby Tai Metzger 3K » Wed Jan 22, 2020 12:46 pm

A visual way to think of this is imagining the molecules floating around in a box. If the box shrinks, but there are still the same number molecules floating around, they will push harder on the box (i.e. larger pressure).

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