state property

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805312064
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Joined: Thu Jul 11, 2019 12:16 am

state property

Postby 805312064 » Fri Jan 31, 2020 12:40 am

What exactly is a state property? I understand that it only depends on the initial and final positions, but I don't understand what that means fundamentally. Also, what is something that is not a state property?

Ronak Naik
Posts: 103
Joined: Sat Jul 20, 2019 12:15 am

Re: state property

Postby Ronak Naik » Fri Jan 31, 2020 12:48 am

A state property is a quantity that is independent of how the substance was prepared. For example, pressure and volume are both state properties that do not have anything to do with how a sample is prepared. Heat would not be a state function as it is dependent on what type of reaction takes place.

Samuel G Rivera - Discussion 4I
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Joined: Sat Aug 17, 2019 12:16 am
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Re: state property

Postby Samuel G Rivera - Discussion 4I » Fri Jan 31, 2020 1:36 am

I don't understand state functions other than that its just final minus initial, but examples of pathway functions are heat and work.

WesleyWu_1C
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Joined: Thu Jul 25, 2019 12:16 am

Re: state property

Postby WesleyWu_1C » Fri Jan 31, 2020 1:54 am

Distance traveled is a great example of a nonstate property because lets say you take 20 steps forward and then 10 steps backward. How many steps did you take? If distance traveled was a state property you would do final minus initial which would be 10 - 0 = 10 (we are saying your starting point is 0). But we know that you didn't just take 10 steps. You took 20 steps forward and 10 steps backwards. Therefore you actually traveled 30 steps. Distance traveled depends on the pathway.

Ryan Yoon 1L
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Joined: Mon Jul 01, 2019 12:15 am

Re: state property

Postby Ryan Yoon 1L » Fri Jan 31, 2020 10:35 am

A state property is not dependent on the path taken to obtain that state, meaning the end result is what matters and not the intermediate steps

Zoe Gleason 4F
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Joined: Tue Jul 23, 2019 12:15 am

Re: state property

Postby Zoe Gleason 4F » Fri Jan 31, 2020 10:59 am

A state property is a quantity of the substance. It does not rely upon how the substance is made.

Madeline Phan 1E
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Joined: Sat Aug 17, 2019 12:18 am

Re: state property

Postby Madeline Phan 1E » Fri Jan 31, 2020 2:06 pm

A state property is a quantity of a substance that doesn't affect how the substance is made.

Eesha Chattopadhyay 2K
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Joined: Fri Aug 09, 2019 12:16 am

Re: state property

Postby Eesha Chattopadhyay 2K » Fri Jan 31, 2020 2:12 pm

An example of something that is not a state function is heat (q) because it is energy in transit and does not depend on the initial and final values.

WYacob_2C
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Re: state property

Postby WYacob_2C » Sat Feb 01, 2020 1:46 am

A state function is a property that is independent of how the substance was created; it only depends on the initial and final state. Some examples include: pressure, density, temperature, volume, enthalpy, internal energy, Gibbs free energy, and entropy.


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