Question: Consider the following system at equilibrium where H = - 1 1 1 k J , and K c = 0 . 1 5 9

Consider the following system at equilibrium where H=-111kJ, and Kc=0.159, at 723K.
N2(g)+3H2(g)2NH3(g)
If the TEMPERATURE on the equilibrium system is suddenly decreased:
the value of KcA A. increases.
B. decreases.
C. remains the same.
the value of Q
A. is greater than Kc.
B. is equal to Kc.
C. is less than Kc.
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.
the concentration of H2 will:
A. increase.
B. decrease.
C. remain the same.
Consider the following system at equilibrium where H=-111kJ, and Kc=0.159, at

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