This equation will be true at equilibrium. To make this equation true, will you need to increase the numbers in the numerator or denominator? Which way must the reaction proceed to accomplish this?

Since one and one form one and one , 0.10mol of and 0.10mol of form 0.10mol of and 0.10mol of

so

amount of = 0.10

amount of = 0.20-0.10

= 0.25-0.10