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For one mole of any van der Waal's gas a...

For one mole of any van der Waal's gas a =0.27 atm-`"litre"^(2)//"mol"^(2)` and b=1.218 `cm^(3)//"mol"`. Select the correct statement(s).

A

At `600^(@)C` and 680 atm, it will exist in gaseous form.

B

At `400^(@)` C and 6800 atm, it will exist in liquid form.

C

At 2700K and low pressure, compression factor `'Z'lt1`.

D

At 2700 K and low pressure, compression factor `'Z'gt1`.

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