Value of q

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Zoya Mulji 1K
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Joined: Thu Jul 11, 2019 12:15 am

Value of q

Postby Zoya Mulji 1K » Thu Jan 30, 2020 6:24 pm

In a perfect system, what would/ should the values of q be?

Goyama_2A
Posts: 107
Joined: Sat Aug 24, 2019 12:17 am

Re: Value of q

Postby Goyama_2A » Thu Jan 30, 2020 7:12 pm

In lecture, Dr.Lavelle showed us that perfect system equation which states that q(system)+q(surroundings)=0, which in turn means that q(system)=-q(surroundings) or vice versa.

Kassidy Ford 1I
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Re: Value of q

Postby Kassidy Ford 1I » Fri Jan 31, 2020 8:25 pm

This also makes sense if you think about the law of conservation of energy, because energy can never be created or destroyed, only transferred. Therefore if a system loses energy that means that its surroundings gain that energy and vice versa.

Juliana Chopelas 1A
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Joined: Sat Aug 24, 2019 12:16 am

Re: Value of q

Postby Juliana Chopelas 1A » Sat Feb 01, 2020 11:35 am

The q of the system is equal to the q of the surroundings meaning any energy gained or lost by the system is equal to any energy gained or lost by the surroundings. They also have opposite signs as if heat is lost by the system, it is gained by the surroundings and vice versa

Jared Khoo 1G
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Joined: Wed Sep 18, 2019 12:16 am

Re: Value of q

Postby Jared Khoo 1G » Sat Feb 01, 2020 1:26 pm

In a perfect system with no energy lost or gained, q lost/gained by system = q gained/lost by surroundings.

Matthew Chan 1B
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Joined: Sat Sep 07, 2019 12:16 am

Re: Value of q

Postby Matthew Chan 1B » Sun Feb 02, 2020 3:37 pm

If there was a system where no energy was lost or gained/with all perfect conditions, q (of the system) = -q (of the surroundings). This is so that if there is any change in one, the other will inversely adapt/change, since if there is heat lost by the system, the surroundings will gain that heat.

Louise Lin 2B
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Re: Value of q

Postby Louise Lin 2B » Sun Feb 02, 2020 5:04 pm

in a perfect system, q(system)=-q(surroundings). if we apply this to the universe as a whole (surroundings), this would be true. besides that, there are no true perfect systems.

sarahartzell1A
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Joined: Fri Sep 28, 2018 12:17 am

Re: Value of q

Postby sarahartzell1A » Sun Feb 02, 2020 7:47 pm

q of the system would be equal to q of the surroundings I believe

AGaeta_2C
Posts: 112
Joined: Wed Sep 18, 2019 12:21 am

Re: Value of q

Postby AGaeta_2C » Sun Feb 02, 2020 9:26 pm

Any energy lost/gained by the system must equal the energy gained/lost by the surroundings.

Nathan Rothschild_2D
Posts: 131
Joined: Fri Aug 02, 2019 12:15 am

Re: Value of q

Postby Nathan Rothschild_2D » Sun Feb 02, 2020 9:33 pm

q of the system is equal to the negative q of the surroundings.

Trent Yamamoto 2J
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Joined: Sat Aug 17, 2019 12:18 am

Re: Value of q

Postby Trent Yamamoto 2J » Sun Feb 02, 2020 10:41 pm

n a perfect system, q lost/gained by system = q gained/lost by surroundings. <--- may be negative

Viviana Velasquez
Posts: 97
Joined: Sat Jul 20, 2019 12:15 am

Re: Value of q

Postby Viviana Velasquez » Mon Feb 03, 2020 7:29 pm

The system's q is equal to the -q of the surroundings


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