1) Initially only A and B are present each at 2.00 molL-1. What is the final concentration of A once equilibrium is reached?2) What is the final concentration of D at equilibrium if the initial concentrations are [A] = 1.00 molL-1 and [B] = 2.00 molL-1 ?3)Carbonyl fluoride COF2 is an important intermediate used in the production of fluorine-containing compounds. For instance it is used to make the refrigerant carbon tetrafluoride CF4 via the reaction2COF2(g)?CO2(g) CF4(g) K=7.80at850KIf only COF2 is present initially at a pressure of 252 kPa what is the partial pressure of COF2 at equilibrium?You can convert the units of pressure from kPa to bar using the relation 1kPa=0.01bar.