Question

N2(g) + O2 (g)= 2NO(g)
if the temperature is constant and the pressure increases the number of miles of NO(g) will
decrease, increase or remain the same

Answer 1

When we have a system at equilibrium a pressure increase will shift the equilibrium to the side with the fewer moles. This equation has the same number of moles on each side; therefore, an increase in P will not change the concn of NO.