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Sourav posted an Question
August 14, 2020 • 19:51 pm 30 points
  • IIT JAM
  • Chemistry (CY)

68. for the gas with equation of state as rt a v-b tv? the value of critical volume v. will be (b) 2 a (a) b 2b (c) 3b (d) 4b a19a..1 c00

68. For the gas with equation of state as RT a V-b Tv? the value of critical volume V. will be (b) 2 a (a) b 2b (c) 3b (d) 4b a19a..1 c00

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    Priyanshu kumar Best Answer

    Vc=3b ...Option C

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    Have you find the value of all the critical constants in previous query??

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    yes.. i understood it.

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    how 3b..this equation is different from Vander wall equation na?

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    No sourav these relations are just interchangeable means by using mathematical relation

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    i didn't get it.

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    wait how this equation comes i will send u

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    the critical volume of the Vanderwall equation comes to be 3b. But here extra temp term is there on a/v^2

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    see this

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    Sourav i think it is given wrong here...suppose if extra T comes then whole equation gets changed na

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    no. Sir.. it is Bertholet equation

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    my doubt is how to know the critical volume for it.

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    what is given answer?

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    yes it comes 3b for bertholet equation too

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    check this for all state

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    what is the reduced form and the signs used with t mark?

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    sourav these reduced forms comes from mathematical derivation...main important is only vanderwaal equation...just learn the Vc value of all these equation of states...as this is short formula and creates confusion

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