Question

A) Consider the following reaction where Kc = 0.159 at 723 K. N2(g) + 3H2(g) 2NH3(g)...

A) Consider the following reaction where Kc = 0.159 at 723 K.

N2(g) + 3H2(g) 2NH3(g)

A reaction mixture was found to contain 4.94×10-2 moles of N2(g), 4.07×10-2 moles of H2(g) and 6.19×10-4 moles of NH3(g), in a 1.00 liter container.

The reaction quotient, Qc, equals __________.

The reaction__________________
A. must run in the forward direction to reach equilibrium.
B. must run in the reverse direction to reach equilibrium.
C. is at equilibrium.

B) Consider the following reaction where Kc = 7.00×10-5 at 673 K.

NH4I(s) NH3(g) + HI(g)

A reaction mixture was found to contain 5.20×10-2 moles of NH4I(s), 5.18×10-3 moles of NH3(g), and 8.37×10-3 moles of HI(g), in a 1.00 liter container.

The reaction quotient, Qc, equals _________.

The reaction _____________
A. must run in the forward direction to reach equilibrium.
B. must run in the reverse direction to reach equilibrium.
C. is at equilibrium.

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