For a real gas obeying the van der Waals equation of state, which of the following mathematical relations accurately define its critical constants ()? (Assume '' and '' are the van der Waals constants

Question

For a real gas obeying the van der Waals equation of state, which of the following mathematical relations accurately define its critical constants ($T_c, P_c, V_c$)? (Assume '$a$' and '$b$' are the van der Waals constants, and '$R$' is the universal gas constant).

Prashant Kotian · Accepted Answer

Correct answer: A,B,C,D. All the given equations are correct theoretical derivations for the critical parameters of a van der Waals gas. These are found by applying the condition of an inflection point on the critical isotherm where and .

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