1.

If the vander waal equation has only one root, what is the relation between a and b?

A. 729a = pb<sup>2</sup>
B. 243a = pb<sup>2</sup>
C. 81a = pb<sup>2</sup>
D. 9a = pb<sup>2</sup>
Answer» B. 243a = pb<sup>2</sup>


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