Consider the following system at equilibrium where H° = 111 kJ/mol, and Kc = 6.30, at 723 K.
2NH3 (g) ⇆ N2 (g) + 3H2 (g)
When 0.38 moles of NH3 (g) are removed from the equilibrium system at constant temperature:
1) The value of Kc:
A. increases.
B. decreases.
C. remains the same.
2) The value of Qc:
A. is greater than Kc.
B. is equal to Kc.
C. is less than Kc.
3) The reaction must:
A. run in the forward direction to restablish equilibrium.
B. run in the reverse direction to restablish equilibrium.
C. remain the same. It is already at equilibrium.
4) The concentration of N2 will:
A. increase.
B. decrease.
C. remain the same.
Answers: 1
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Consider the following system at equilibrium where H° = 111 kJ/mol, and Kc = 6.30, at 723 K.
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