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Le Chatelier's principle Quiz

Le Chatelier's principle Quiz

Le Chatelier's principle Quiz Test

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Quiz Questions And Answers

When more reactant is added into a reaction system at equilibrium, how does the system react to compensate for the stress that is applied?

More reactant is formed
There is no change
More product is formed

When the pressure on a gaseous reaction system at equilibrium is increased, the equilibrium will shift...

In favor of the side with the least gas molecules
In favor of the side with the most gas molecules
There will be no change
To the product side
To the reactant side

For the following reaction, how will the reaction equilibrium be affected by an increase in temperature?H2O2(l) <--> H2(g) + O2(g) DH = +187 kJ

It will shift to the right
It will shift to the left
There will be no change

For the following reaction, how will the reaction equilibrium be affected by an increase in volume?H2O2(l) <--> H2(g) + O2(g) DH = +187 kJ

It will shift in favor of the products
It will shift in favor of the reactants
There will be no change

For the following reaction, how will the reaction equilibrium be affected by the removal of oxygen gas?H2O2(l) <--> H2(g) + O2(g) DH = +187 kJ

It will shift to the right
There will be no change
It will shift to the left

If volume is decreased for the following reaction system at equilibrium, what color will you expect the mixture to become? N2O4(g) + heat <--> 2 NO2(g)colorless

Colorless
Brown

Le Chatelier's principle states that

if a chemical system at equilibrium is stressed, the system will adjust to increase the stress
if a chemical system at equilibrium is stressed, the system will adjust to reduce the stress
if a chemical system at equilibrium is stressed, the system will not adjust

Which of the following is not a way to stress a chemical system?

temperature
pressure
time

A reaction that releases heat energy is known as

endothermic
exothermic
isothermic

When writing an endothermic reaction, heat energy is stated as a

product
catalyst
reactant
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