Question

For the reaction N2(g) + 3H2(g) <-> 2NH3(g), what will happen if more nitrogen gas is added?

there will be a shift towards the products

there will be a shift towards the reactants

there will not be a shift in equilibrium

the value for Keq will change

Answer 1

When a substance is added, the system will shift to such way that the excess is removed , attempting to maintain previous equilibrium.
As a result, the reaction will shift to form NH3, so that excess N2 is used up.
A.