
CHEMICAL EQUILIBRIUM
Authored by Jamaica Tamayo
Chemistry
12th Grade
Used 10+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a reaction has a very large equilibrium constant (K >> 1), what can be inferred?
The reaction strongly favors the reactants
The reaction strongly favors the products
The reaction is at equilibrium
The reaction proceeds at a very slow rate
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the reaction 2SO2(g)+O2(g)⇌2SO3(g), increasing the concentration of SO2 will:
Increase the equilibrium constant
Decrease the equilibrium constant
Shift equilibrium toward product formation
Shift equilibrium toward reactant formation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A reaction at equilibrium has K=2.5K. If all reactant and product concentrations are doubled, what happens to K?
It remains the same
It doubles
It halves
It becomes squared
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an exothermic reaction, increasing temperature will:
Increase K
Decrease K
Have no effect on K
Reverse the reaction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A reaction has a small equilibrium constant (K < 1). This means that at equilibrium:
Reactants are mostly converted to products
The reaction is fast
The reaction favors the reactants
The system is at dynamic equilibrium with equal reactant and product amounts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A catalyst is added to a reaction system at equilibrium. What happens to K?
K increases
K decreases
K remains unchanged
K depends on the catalyst concentration
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For the reaction H2(g)+I2(g)⇌2HI(g), what happens to the equilibrium constant if the pressure is increased?
It increases
It decreases
It remains unchanged
It depends on the concentration of HI
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