$A$ chemical reaction is at equilibrium when

Select the incorrect statement $(s)$ regarding the state of equilibrium.

In the chemical equilibrium of a reversible reaction,which of the following does not cause any change?

Chemical equilibrium is dynamic in nature because

For the reaction $A + B \rightleftharpoons C + D$,the equilibrium constant is $K$. If the initial moles of $A$ and $B$ are $1.0 \ mol$ each,what will be the value of the equilibrium constant in a second experiment under the same conditions if the initial moles of $A$ and $B$ are $2 \ mol$ and $3 \ mol$ respectively?

The $K_c$ for $H_{2(g)} + I_{2(g)} \rightleftharpoons 2HI_{(g)}$ is $64$. If the volume of the container is reduced to one-half of its original volume,the value of the equilibrium constant will be