Reference no: EM132252040

1. Consider the following system at equilibrium where H° = 111 kJ, and K_c = 6.30, at 723 K.

2NH₃(g) ----------->N₂(g) +  3H₂(g)  

If the VOLUME of the equilibrium system is suddenly  decreased at constant temperature:

The value of K_{c ----------------} A. increases.B. decreases.C. remains the same.

The value of Q_{c ---------------------} A. is greater than K_c.B. is equal to K_c.C. is less than K_c. 

The reaction must:----------------A. run in the forward direction to reestablish equilibrium.B. run in the reverse direction to reestablish equilibrium.C. remain the same. It is already at equilibrium.

The number of moles of H₂ will:--------------A. increase.B. decrease.C. remain the same.

2. Consider the following system at equilibrium where H° = -16.1 kJ, and K_c = 154, at 298 K.

2NO(g) +  Br₂(g)--------->2NOBr(g) 

If the VOLUME of the equilibrium system is suddenly  increased at constant temperature:

The value of K_{c--------------}A. increases.B. decreases.C. remains the same.

The value of Q_{c----------------}A. is greater than K_c.B. is equal to K_c.C. is less than K_c. 

The reaction must:---------------A. run in the forward direction to reestablish equilibrium.B. run in the reverse direction to reestablish equilibrium.C. remain the same. It is already at equilibrium.

The number of moles of Br₂ will:--------------A. increase.B. decrease.C. remain the same.