In Van der Waals' gas equation [P + a/V²][V - b] = RT, the dimensions of Van der Waals constant a are:
Options

Question

In Van der Waals' gas equation [P + a/V²][V − b] = RT, the dimensions of Van der Waals constant a are:

G1 Physics · Accepted Answer

Step 1: The terms P and a/V² must have the same dimensions. Step 2: Hence [a]=[P][V²]=[M L⁻¹T⁻²][L⁶]=[M L⁵T⁻²]. Final: Correct answer: A.