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The critical temperature and pressure of...

The critical temperature and pressure of `CO_(2)` gas are 304.2 K and 72.9 atm respectively. What is the radius of `CO_(2)` molecule assuming it to behave as vander Waal's gas

A

`1.62 A ^(@)`

B

`3.1 A ^(@)`

C

`2.3 A ^(@)`

D

`0.81 A ^(@)`

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