Question

1) The following reaction is an equilibrium reaction. CO2(g) + C(graphite) = 2 CO(g) A reactor initially contained only 0.20 atm CO2 gas in the presence of graphite at 25 °C and later the reaction reached an equilibrium. Answer the following questions. A) If Kis 2.25 at the given temperature above, calculate the equilibrium pressures of CO, and CO, respectively. [6 pts) B) Determine the Ke of the reaction above. [4 pts]

Answer 1

Answer

This question is solved by using the simple concept chemical equilibrium using the expression of equilibrium constant.

The answer is given in the image

Ansullri CO2 g) + Ceysophite) 2006, 0-20-x A) Kp = 2:25 2x Kp = Pco² POOL 2-25 = 2212 0.20-X 0.450 -2.25% = 4x2 4x2+2.257-0.450 x = -2.25 +52:25)2 + 4x4x0.45 244 2= -2.25 + 3-5018 X = 0.16 equilibrio pressure ? P co₂ = 0.20-8-16=0.04 atm.

Pco 2x = 0.16x2 =0.32 atm. B) Kps ke(RT) en An=2-1=1 kp=KERY kc ke R7 Kc= 2.25 0.0821x298 kc=0.092