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WorksheetsAP CHEM Unit 2 Day 4
Total questions: 16
Worksheet time: 48mins
What would Keq be for this reaction?
If K is 1080 which of the following is a good estimate of equilibrium concentrations of H2, O2 and H2O, respectively?
The equilibrium constant for the reaction shown is 4.3 × 10−4 at 25◦ C. Will nitrous acid spontaneously dissociate (will the forward reaction occur) when
[HNO2(aq)] = 0.10 M
[NO2− (aq)] = [H3O+(aq)] = 1.0 × 10−2 M?
No
Yes
Cannot be determined
#chemISlyfe
The equilibrium constant Kc for the reaction
2SO2(g) + O2(g) ⇌ 2SO3
is 11.7 at 1100 K. A mixture of SO2, O2, and SO3, each with a concentration of 0.015 M, was introduced into a container at 1100 K. Which of the following is true?
SO2(g) and O2(g) will be formed until equilibrium is reached.
SO3(g) will be formed until equilibrium is reached.
The system is already at equilibrium.
There will be no shift.
The equilibrium constant Kc for the reaction is 0.51 at a certain temperature. A mixture of NOCl, NO, and Cl2 with concentrations 1.3, 1.2, and 0.60 M, respectively, was introduced into a container at this temperature. Which of the following is true?
Cl2(g) is produced until equilibrium is reached.
NOCl(g) is produced until equilibrium is reached.
No apparent reaction takes place.
CHEM>ENGLISH
The reaction 2 A → B + C has a Kc of 0.2. The reaction is commenced with initial concentrations
[A] = 0.2 M
[B] = 0.2 M
[C] = 0.2 M
In what direction does the reaction occur?
The reaction is already at equilibrium.
The reaction shifts to the right to reach equilibrium.
The reaction shifts to the left to reach equilibrium.
CHEM>HISTORY
If K = 103 and 0.1 mol of each species is added to a 1 L container, what will occur?
If K = 0.01 and 0.1 mol of each species is added to a 1 L container, what will occur?
