If a gas obeys van-der Waals' equation at the critical point, then \[\frac{R\,{{T}_{c}}}{{{p}_{c}}\,{{v}_{c}}}\] is equal to which one of the following?

If a gas obeys van-der Waals' equation at the critical point, then \[\

1.	If a gas obeys van-der Waals' equation at the critical point, then \[\frac{R\,{{T}_{c}}}{{{p}_{c}}\,{{v}_{c}}}\] is equal to which one of the following?
A.	0
B.	1
C.	1.5
D.	2.67
Answer» E.

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If a gas obeys van-der Waals' equation at the critical point, then \[\frac{R\,{{T}_{c}}}{{{p}_{c}}\,{{v}_{c}}}\] is equal to which one of the following?

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