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Using van der Waals equation, calculate ...

Using van der Waals equation, calculate the constant, a when two moles of a gas confined in a four litre flask exerts a pressure of 11.0 atmospheres at a temperature of 300 K. The value of b is 0.05 L `"mol"^(-1)`

A

6.46

B

3.82

C

5.2

D

1.23

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