1-3 WKST II

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LE CHÁTELIER’S PRINCIPLE II
Use Le Chátelier’s Principle to predict the shift in equilibrium caused by the stress
introduced in the given equilibrium.
1. Predict the shift in the following equilibrium when…
BaO (s) + CO2 (g)
a.
BaCO3(s)
H = (–)
The temperature is increased.
b. The pressure is reduced.
c. Barium oxide is removed.
2. Predict the shift in the following equilibrium when…
CH4 (g) + 3 Br2 (l)
CHBr3 (l) + 3 HBr (g)
a. The equilibrium is cooled.
b. The pressure is increased.
c. Liquid bromine is pumped into the chamber.
H = (+)
3. Predict the shift in the following equilibrium when…
K2MoO4 (s)
2 K+ (aq) + MoO42– (aq)
a. The temperature is increased.
b. Water is boiled off and the solution cooled to its original temperature.
c. Molybdate ions are removed.
4. Predict the shift in the following equilibrium when…
Rb2CO3 (aq) + H2O (l)
a. Acid is added to the mixture.
b. The system is heated.
c. The pressure is increased.
2 RbOH (aq) + CO2 (g)
H = (–)
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