The van der Waal's equation rearranged as a cubic in the molar volume Vₘ is
Vₘ³ − (b + RT/P)Vₘ² − (a/P)Vₘ − ab/P = 0
Indicate the correct statement(s):

Question

The van der Waal's equation rearranged as a cubic in the molar volume Vₘ is Vₘ³ − (b + RT/P)Vₘ² − (a/P)Vₘ − ab/P = 0 Indicate the correct statement(s):

TestHub · Accepted Answer

Below T c the cubic has three real roots (the outer two corresponding to liquid and vapour volumes) (a ✓); exactly at T c the three roots merge into one, Vₘ = V c (b ✓); above T c only one real root survives, the other two being imaginary (c ✓). Hence (d) is false and the correct choices are (a), (b), (c).

Chemistry - Real Gas Question with Solution | TestHub

Options:(select one or more)

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