In the reaction : NH(4)CI(g) hArr NH(3...

In the reaction :
`NH_(4)CI(g) hArr NH_(3)(g) +HCI(g)`
A graph is plotted to show that the variation of the rate of forward and backward reaction against time. Which match is correct ?

`{:(Q gt K, Q = K, Q lt K),(3,2,1):}`

`{:(Q gt K, Q = K, Q lt K),(2,3,1):}`

`{:(Q gt K, Q = K, Q lt K),(1,2,3):}`

`{:(Q gt K, Q = K, Q lt K),(2,1,3):}`

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The correct Answer is:

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Mass action rato or reaction quotient Q for a reaction can be calculate using the law of masss action A(g)+B(g) hArr C(g)+D(g) Q=([C][D])/([A][B]) The value of Q decides whether the reaction is at equilibrium or not. At equilibrium, Q=K For an equilibrium process, Q ne K when Q gt K , reaction will favour backward direction and when Q lt K , it will favour direction. Answer the following questions: In the reaction: NH_(4)Cl(g) hArr NH_(3)(g)+HCl(g) a graph is plotted to show that the variation or the rate of forward and backward reaction against time. Which of following is correct?

`Q gt K=3, Q=K=2, Q lt K=1`

`Q gt K=2, Q=K=3, Q lt K=1`

`Q gt K=1, Q=K=2, Q lt K=3`

`Q gt K=2, Q=K=1, Q lt K=3`

`3 2 1`

`1 2 3`

`2 3`1`

`2 1 3`

degree of dissociation will increase on decreasing temperature

on decreasing the volume of container degree of dissociation will increase.

`K_(c)` will decrease on increasing temperature.

on adding inert gas at constant pressure the amount of ammonia will decrease.