4. The following reaction of carbon monoxide and waterhas a Kc value of 8.3. \mathrm{CO}(\mathrm{g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \leftrightarrows \mathrm{H}_{2}(\mathrm{~g})+\mathrm{CO}_{2}(\mathrm{~g}) If CO(g) and H₂O(g) have the same initial concentration of 0.20mol/L, what concentration of CO₂(g) will be present at equilibrium? 5. 12. At a certain temperature, Kc = 4.0 for the following reaction. 2HF(g) → H2(g) + F2(g)A 1.0 L reaction vessel contained 0.045 mol ofF2(g) at equilibrium. What was the initial amount of HF in the reaction vessel?- .6. In the following reaction at 448, the equilibrium concentrations are HI = 0.0040M, °C H2 =0.0075M, 12 = 0.000043M. Calculate the equilibrium constant given the reaction below: 7. For the following reaction at equilibrium at 2000,K °C eq = 1.6 x 103. 2 NO (g) N2 (g) + O2 (g) The concentration of NOis 0.13 mol/L. If the concentrations of N2 and 02 are equal, calculate the concentration of N2. At a certain temperature, the value of Kc for the following reaction is 4.2 x 10-8 . N2(g) + O2(g)2NO(g). 0.45 mol of N2(g) and 0.26 mol of O2(g) are put in a 6.0 L reaction vessel. What is the equilibrium concentration of NO(g) at this temperature?--