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Eugene S.
University of Minnesota - Twin Cities

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Problem 6 Easy Difficulty

What is a state function? List some examples of state functions.

Answer

$10^{\circ}$ ,work

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Video Transcript

So this question asks, What is a state function? And so a state function is a property whose value does not depend on the path taken. And so, ah, good example of this is temperature tea. And so if you raise the temperature of very, very rapidly or raise it very slowly, whatever temperature you end at, um is the same. So if if I go from zero degrees to ten degrees, if I do that instantaneously on defy do that over the course of, say, an hour, it's still ten degrees. It doesn't matter how I got there. It just matters what that value is. And so others example of this our mass m pressure p density ro ah, energy temperature, as I mentioned before volume Ah, and soapy entropy and gives free energy. So all of these are examples of state functions, and now the opposite of this is a path function, which depends on the path you take to get there. I'M determines its value in one example of this is work. And so if I have a crane lift a boulder, I myself do no work. Whereas if I lift the boulder, I have to do work in order to do that. And so the path of how the boulder got raised, um, determines what the value of that function is.

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