Entropy and Pressure


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Entropy and Pressure

Postby Ami_Pant_4G » Sat Feb 08, 2020 9:41 pm

When pressure increases, does entropy decrease? If so can someone please explain why? Thanks in advance.

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Re: Entropy and Pressure

Postby ng1D » Sat Feb 08, 2020 9:59 pm

I think that when pressure increases, volume decreases and when volume decreases entropy also decreases.

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Re: Entropy and Pressure

Postby rabiasumar2E » Sat Feb 08, 2020 10:46 pm

Yes! When pressure increases, entropy decreases because volume decreases.

Matt F
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Re: Entropy and Pressure

Postby Matt F » Sun Feb 09, 2020 11:13 am

Entropy increases as a system gets bigger, meaning that the opposite is also true (a smaller volume means entropy decreases). When we are talking about pressure and temperature we are usually talking about a closed system with a piston, so if a piston compresses and increases pressure, volume is decreased and entropy is therefore also decreased

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