Why do equilibrim reactions referred to as dynamic equilibrium ?

In which of the following reaction, pressure has no effect on equilibrium ?

Define equilibrium constant of a reaction.What is the unit of equilibrium constant.

Define equilibrium constant of reaction.

Write the equilibrium expression and equilibrium constant for the given reverse reaction.

In endothermic equilibrium reaction the increase in temperature ________________

Write the expression for equilibrium constant , Kc for the reaction. aA +bB →cC+dD.If the equilibrium constant for this reaction is 50,What is the equilibrium constant for it's reverse reaction. cC+dD→aA+bB?

Why do we classify organism ?

In a reversible chemical reaction having two reactants in equilibrium, if the concentrations of reactants are doubled, then the equilibrium constant will :