Statement 1: For a van der Waal's gas, the constants 'a' and 'b' are independent of temperature.
Statement 2: The gases obeying van der Waal's equation in all the conditions of pressure and temperature are called van der Waal's gases.

Question

Statement 1: For a van der Waal's gas, the constants 'a' and 'b' are independent of temperature.

Statement 2: The gases obeying van der Waal's equation in all the conditions of pressure and temperature are called van der Waal's gases.

TestHub · Accepted Answer

Statement 1 is correct: a and b are characteristic constants of a gas, independent of T and P. Statement 2 is correct as the definition of a van der Waals gas. But the definition in II does not explain why a and b are temperature-independent; it only names the class of gases. Both correct, II not the explanation. Ans: (b).

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