Answer to Question #170457 in Physical Chemistry for Jessica

Question

1. The reaction between water and carbon monoxide will reach dynamic equilibrium: 

 

                             H2O(g)   +  CO(g)  ⇌ H2(g)  + CO2(g)  ∆H = -42.1 kJ mol-1 

 

Use Le Chatelier’s principle to state and explain the effect on the concentration of hydrogen in the equilibrium mixture if the following changes are made: 

 

1. The concentration of CO(g) is increased 
2. The temperature is decreased 
3. The pressure is increased 

Answer 1

Using Le-Chateleir principle,

1) Concentration of H2 [Increases] , As equilibrium shifts to product side

2) Concentration of H2 [Increases], As equilibrium shifts to product side

3) [No effect] ,As gaseous moles on both sides are equal