
Le Chatelier's Principle and Reaction Quotients
Interactive Video
•
Chemistry, Science
•
10th - 12th Grade
•
Hard

Jackson Turner
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does Le Chatelier's Principle predict when a stress is applied to a system at equilibrium?
The reaction will reverse completely.
The reaction will speed up indefinitely.
The reaction will proceed in the direction that relieves the stress.
The reaction will stop.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the hypothetical reaction where gas A turns into gas B, what is the equilibrium constant (Kc) at 25 degrees Celsius?
3
4
2
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the reaction quotient (Qc) when the concentration of reactant A is increased?
Qc becomes zero.
Qc becomes greater than Kc.
Qc becomes less than Kc.
Qc remains equal to Kc.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After increasing the concentration of reactant A, in which direction does the net reaction proceed to re-establish equilibrium?
It oscillates back and forth
To the right
It remains unchanged
To the left
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it useful to calculate Q values in Le Chatelier's Principle problems?
To determine the speed of the reaction
To calculate the pressure of the system
To predict the direction of the net reaction
To find the temperature of the reaction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the synthesis of ammonia, what happens to the concentration of ammonia when hydrogen concentration is increased?
It increases
It remains constant
It decreases
It becomes zero
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is observed on the graph when the concentration of hydrogen is increased in the ammonia synthesis reaction?
A sudden increase in temperature
A sudden decrease in nitrogen concentration
A sudden increase in hydrogen concentration
A sudden decrease in ammonia concentration
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