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A vessel of volume 5 litre contain 1.4 g...

A vessel of volume 5 litre contain 1.4 g of nitrogen at a temperature 1800 K. The pressure of the gas if 30% of its molecules are dissociated into atoms at this temperature is

A

`4.05 atm`

B

`2.025 atm`

C

`3.84 atm`

D

1.92 atm

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