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Le Chatelier's Principle: Temperature

Authored by Mark Debold

Chemistry

10th Grade

NGSS covered

Used 4+ times

Le Chatelier's Principle: Temperature
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11 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

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Summarize Le Chatelier's principle.

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Tags

NGSS.HS-PS1-5

2.

OPEN ENDED QUESTION

3 mins • 1 pt

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What is the problem asking you to do?

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NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

  1. 1. Identify the reaction type: A negative ΔH∘ indicates that the forward reaction (the production of ammonia) is exothermic, meaning it releases heat. A positive ΔH∘ is endothermic.

What type of reaction has a ΔH∘ -92 kJ mol -1

Endothermic

Exothermic

Tags

NGSS.HS-PS1-4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

  1. 1. Identify the reaction type: A negative ΔH∘ indicates that the forward reaction (the production of ammonia) is exothermic, meaning it releases heat. A positive ΔH∘ is endothermic.

What type of reaction has a ΔH∘ 145 kJ mol -1

Endothermic

Exothermic

Tags

NGSS.HS-PS1-4

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

  1. 2. Identify the change

  2. What change is being manipulated in this problem?

Temperature

Pressure

Concentration

Color

Tags

NGSS.HS-PS1-5

6.

OPEN ENDED QUESTION

3 mins • 1 pt

When the temperature of the system is increased, you're essentially adding more heat. According to Le Châtelier's principle, the system will try to counteract this addition of heat by shifting in the direction that consumes heat.

Since the reverse reaction is endothermic and absorbs heat, the equilibrium will shift to the left, favoring the reactants (N2​ and H2​).

QUESTION: What happens when you increase the temperature of a system?

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NGSS.HS-PS1-6

7.

OPEN ENDED QUESTION

3 mins • 1 pt

When the temperature of the system is increased, you're essentially adding more heat. According to Le Châtelier's principle, the system will try to counteract this addition of heat by shifting in the direction that consumes heat.

Since the reverse reaction is endothermic and absorbs heat, the equilibrium will shift to the left, favoring the reactants (N2​ and H2​).

QUESTION: Explain how the system will counteract the addition of heat?

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NGSS.HS-PS3-4

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