Reference no: EM132647457

A set of four reversible elementary reactions that describe the oxidation of CO to CO2 in the presence of water is given below. We will discuss these further when we get to chemical kinetics. Here you are to consider the thermodynamics of these reactions.

a. From the property tables in Turns, compile a table of the following quantities for each of the four reactions: the enthalpy of reaction for the forward reaction at Tref(?HR at 298 K), the partial-pressure equilibrium constant at 1800 K (Kp at 1800 K), and the partial-pressure equilibrium constant at 2000 K (Kp at 2000 K).

b. In which direction (left-to-right, right-to- left, or neither) is each of the three reactions exothermic?

c. In which direction (toward the left, toward the right, or neither) will the equilibrium of each reaction shift if the pressure of the system is decreased from 1 atm to 0.1 atm?

d. In which direction (toward the left, toward the right, or neither) will the equilibrium of each reaction shift if the temperature of the system is decreased from 2000 K to 1800 K? You should be able to make at least two different arguments from your part a table, both of which should give the same answer.

CO + O2↔ CO2 + O

O + H2O ↔ OH + OH

CO+ OH ↔ CO2 + H

H + O2↔ OH + O