For the reaction
A2 (g) + B2 (g) ⇌ 2AB (g)
What can be deduced about the value of Kp?
Kp 1
Kp < 1
Kp > 1
Using the data nothing can be concluded about the value of Kp.
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Equilibrium Representation & Calculations
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Equilibrium Representation & Calculations
For the reaction
A2 (g) + B2 (g) ⇌ 2AB (g)
What can be deduced about the value of Kp?
Kp 1
Kp < 1
Kp > 1
Using the data nothing can be concluded about the value of Kp.
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For the reaction:
X2 (g) + Y2 (g) ⇌ 2XY (g)
The following represents the ratio of molecules at equilibrium at 25 °C in a 1.00 L sealed container. Assume that each particle in the diagram represents 1 mole.
Based on this information, what is the equilibrium constant, Kc, for the reaction above at 25°C?
0.5
12.5
2
0.08
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The value of Kc at 298K for the following reaction is 4.0:
CH3COOH (l) + CH3CH2OH (l) ⇋ CH3COOCH2CH3 (l) + H2O (l)
A student measures the concentrations and calculates a value for the reaction quotient, Q=8.7.
What does this tell you about the system?
The reaction has not reached equilibrium and is moving left to right.
The reaction has not reached equilibrium and is moving right to left.
The reaction has reached equilibrium, but there are more products than reactants.
The reaction has reached equilibrium, but there are more reactants than products.
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2SO3 (g) ⇌ 2SO2 (g) + O2 (g) Kc = 1.7 x 10-18 at 300 K
If the pressure of SO3 (g) was 0.060 M.
What is the concentration of O2 (g) at equilibrium?
0.06 M
6.12 x 10-21 M
1.15 x 10-7 M
6.12 x 10-21 M
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PCl3 (g) + Cl2 (g) ⇌ PCl5 (g)
Kc = 50 at 450 oC
If the initial concentration of PCl3 was 0.30 M and Cl2 was 0.45 M, what is the concentration of PCl5 at equilibrium?
1.30 M
0.75 M
1.68 M
3.38 M
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Br2 (g) + Cl2 (g) ⇌ 2BrCl (g)
Kp = 70 at 400 K
3.0 atm of Br2 (g) and Cl2 (g) are mixed in a sealed container at 400 K and left to reach equilibrium.
Which expression is the most appropriate to calculate the concentration of BrCl (g) at equilibrium?
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