Question 12 (1 point)

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Consider the equilibrium: 2 A (g) + B (g) A₂B (g) Which of the following is the correct equilibrium constant equation?

Question 12 options:

Question 13 (1 point)

Calculate G for the following reaction at 25^oC . In which direction will the reaction occur spontaneously?

NH₃(g) + HCl(g) NH₄Cl(s) given for the reaction

H= 176. kJ/mol S= 284.8 J/(mol.K)

Question 13 options:

	-91 kJ/mol; spontaneous in the reverse direction
	-169 kJ/mol; spontaneous in the forward direction
	-169 kJ/mol; spontaneous in the forward direction
	84700 kJ/mol; spontaneous in the reverse direction
	-91 kJ/mol; spontaneous in the forward direction

Question 14 (1 point)

Consider the following reversible reaction:

N_{2 (g)} + 3 H_{2 (g)} 2 NH_{3 (g)} K = 2.57 at 500^oC

The following concentrations are found at equilibrium: 0.316 mol/L N₂ 0.140 mol/L H_{2. D}etermine the value of the equilibrium concentration of ammonia, NH₃.

Question 14 options:

	21.2 mol/L
	0.114 mol?L
	0.00223 mol/L
	0.0472 mol/L
	0.123 mol/L