Rate Of Reaction Flashcards

1
Q

What is the definition of the rate of reaction?

A

The rate of reaction is the speed at which reactants are converted into products in a chemical reaction.

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2
Q

True or False: The rate of reaction can be influenced by temperature.

A

True

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3
Q

Fill in the blank: The rate of reaction is typically measured in __________.

A

moles per liter per second (mol/L/s)

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4
Q

Which factor does NOT affect the rate of reaction?

A

The color of the reactants.

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5
Q

What effect does increasing the concentration of reactants have on the rate of reaction?

A

It generally increases the rate of reaction.

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6
Q

Name one physical state of reactants that can affect the rate of reaction.

A

Solid, liquid, or gas.

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7
Q

What is the effect of temperature on the rate of reaction?

A

Increasing temperature usually increases the rate of reaction.

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8
Q

True or False: Catalysts increase the rate of reaction without being consumed in the process.

A

True

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9
Q

What role does surface area play in the rate of reaction?

A

Increased surface area leads to a higher rate of reaction.

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10
Q

How does pressure affect the rate of reaction for gases?

A

Increasing pressure increases the rate of reaction by forcing gas molecules closer together.

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11
Q

What is a catalyst?

A

A substance that increases the rate of a chemical reaction without undergoing permanent change itself.

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12
Q

Multiple choice: Which of the following factors can affect the rate of reaction? A) Temperature B) Surface Area C) Concentration D) All of the above

A

D) All of the above

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13
Q

What is the relationship between reaction rate and activation energy?

A

A lower activation energy typically results in a higher reaction rate.

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14
Q

Fill in the blank: The __________ theory explains how temperature affects the rate of reaction.

A

collision

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15
Q

What happens to the rate of reaction as the reactants are consumed?

A

The rate of reaction generally decreases as reactants are consumed.

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16
Q

True or False: The rate of reaction is constant throughout the reaction.

A

False

17
Q

What is meant by the term ‘reaction mechanism’?

A

The sequence of steps that describes the pathway from reactants to products in a chemical reaction.

18
Q

What is the effect of stirring a reaction mixture?

A

Stirring increases the rate of reaction by promoting better mixing and contact between reactants.

19
Q

Fill in the blank: The __________ of reactants can also influence the reaction rate.

A

physical state

20
Q

What does the term ‘rate law’ refer to?

A

An equation that relates the rate of a reaction to the concentration of its reactants.

21
Q

True or False: The rate of reaction is independent of the concentration of reactants.

A

False

22
Q

How does the presence of inhibitors affect the rate of reaction?

A

Inhibitors decrease the rate of reaction.

23
Q

What is the effect of light on certain reactions?

A

Light can increase the rate of reaction in photochemical processes.

24
Q

Multiple choice: Which of the following increases the rate of reaction? A) Decreasing temperature B) Increasing concentration C) Reducing surface area D) All of the above

A

B) Increasing concentration

25
Q

What is the term for a reaction that occurs without the need for a catalyst?

A

Uncatalyzed reaction.