question_answer

The reaction quotient (Q) for the reaction \[{{N}_{2}}(g)+3{{H}_{2}}(g)~2N{{H}_{3}}(g)\] is given by \[Q=\frac{{{[N{{H}_{3}}]}^{2}}}{[{{N}_{2}}]\,{{[{{H}_{2}}]}^{3}}}\]. The reaction will proceed towards right side if:                                                                                                                                       [AIPMT 2003]

A)  \[Q>{{K}_{c}}\]

B)                   \[Q=0\]

C)  \[Q={{K}_{c}}\]

D)                   \[Q<{{K}_{c}}\]

Correct Answer: A

Solution :

For reaction,

Q (Quotient)

At equilibrium Q is equal to  but for the progress of reaction towards right side   where  is the equilibrium constant.