1.

The reaction of dimerisation of NO_(2) in N_(2)O_(4) is 2NO_(2)hArrN_(2)O_(4). The reaction is carried out by taking 1 mole each of NO_(2) and N_(2)O_(4) in a closed vessel of 1 litre at 400 K. The equilibrium pressure was found to be 77 atm. The ratio of moles of N_(2)O_(4) and NO_(2) at equilibrium is :

Answer»

`2.62`
0.38`
`3.62`
`0.28`

SOLUTION :`(n_(N_(2)O_(4)))/(n_(N O_(2)))=(1-x)/(1+2x)=0.65/1.70=0.38`


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