7.1 Equilibrium

2NH₃ (g) + CO₂ (g)  CO(NH₂)₂ (g) + H₂O (g) 

   Write the equilibrium constant expression, K_c.

   Predict the effect on the equilibrium constant, K_c, when the temperature is increased.

   Determine the magnitude of K_c if the reaction is reversed.

H₂ (g) + I₂ (g)  2HI (g)               ΔH^θ < 0

   Determine the K_c expression for this reaction.

   Deduce the K_c value for the following reaction.

1/2H₂ (g) + 1/2I₂ (g)  HI (g)  

   Explain why the value of K_c has changed.

   State what will happen to the value of K_c.

HCOOH (l) + CH₃OH (l)  HCOOCH₃ (l) + H₂O (l)

The esterification reaction is exothermic. State the effect of increasing temperature on the value of the equilibrium constant ($K_{\text{c}}$) for this reaction.