In an exothermic reaction, where is the energy transferred from?
Equilibrium

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Chemistry
•
11th - 12th Grade
•
Easy
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Energy is transferred from the reactants to their surroundings.
Energy is transferred from the surroundings to the reactants.
Energy is transferred from the products to the reactants.
Energy is transferred from the environment to the products.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is dynamic equilibrium?
A state where the forward reaction is faster than the reverse reaction.
A state in which the rate of the forward reaction equals the rate of the reverse reaction, resulting in no net change in the concentration of reactants and products.
A condition where all reactants are completely converted to products.
A temporary state that occurs only during the initial phase of a reaction.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the role of concentration in shifting equilibrium?
Changing the concentration of reactants or products will shift the equilibrium position to counteract the change.
Concentration has no effect on the equilibrium position.
Increasing concentration of products will always shift equilibrium to the left.
Decreasing concentration of reactants will always shift equilibrium to the right.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How does adding a catalyst affect the position of equilibrium?
It shifts the position of equilibrium to the right.
It shifts the position of equilibrium to the left.
It does not shift the position of equilibrium; it only speeds up the rate at which equilibrium is reached.
It changes the equilibrium constant of the reaction.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
In which state of matter do changes in pressure affect equilibrium?
Solid state
Liquid state
Gaseous state
Plasma state
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is Le Chatelier's Principle?
Le Chatelier's Principle states that a reaction at equilibrium will always favor the formation of products.
Le Chatelier's Principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium will shift to counteract the change.
Le Chatelier's Principle states that increasing temperature will always shift the equilibrium to the left.
Le Chatelier's Principle states that the concentration of reactants will always remain constant during a reaction.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the difference between a physical change and a chemical change in the context of equilibrium?
A physical change alters the chemical composition of a substance, while a chemical change does not.
A physical change involves a change in state or appearance without altering the chemical composition, while a chemical change involves the formation of new substances.
A physical change results in the creation of new substances, while a chemical change only changes the state of matter.
A physical change is reversible, while a chemical change is always irreversible.
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