1mole NH(3) gas is introduced in a 4 lit...

`1`mole `NH_(3)` gas is introduced in a `4 litre` vessel containing `5gram` of He and heated at `400K` temperature. `NH_(3)` is `40%` dissociated and following equilubrium is established `:-`
`NH_(3)hArr(1)/(2)N_(2)+(3)/(2)H_(2)`
Find total pressure at equilibrium `:-`

A

`2.87atm`

B

`21.76atm`

C

`2.17atm`

D

`28.7atm`

Text Solution

Verified by Experts

The correct Answer is:

B

PV=nRT
`P(4)=2.65xx0.0821xx400`
`n_(He)=(5)/(4)=1.25`
`n(NH_(3)+H_(2)+N_(2))=1.4`

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