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What happens to the boiling point of a liquid when the atmospheric pressure decr

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Question: What happens to the boiling point of a liquid when the atmospheric pressure decreases?

Options:

  1. It increases.
  2. It decreases.
  3. It remains the same.
  4. It becomes unpredictable.

Correct Answer: It decreases.

Solution: 

The boiling point of a liquid decreases with a decrease in atmospheric pressure.

What happens to the boiling point of a liquid when the atmospheric pressure decr

Practice Questions

Q1
What happens to the boiling point of a liquid when the atmospheric pressure decreases?
  1. It increases.
  2. It decreases.
  3. It remains the same.
  4. It becomes unpredictable.

Questions & Step-by-Step Solutions

What happens to the boiling point of a liquid when the atmospheric pressure decreases?
Correct Answer: The boiling point decreases.
  • Step 1: Understand what boiling point means. The boiling point is the temperature at which a liquid turns into a gas.
  • Step 2: Know what atmospheric pressure is. Atmospheric pressure is the weight of the air above us pressing down on everything.
  • Step 3: Realize that boiling happens when the pressure of the liquid's vapor equals the atmospheric pressure.
  • Step 4: When atmospheric pressure decreases, it means there is less air pressing down on the liquid.
  • Step 5: With less pressure, the liquid can turn into gas at a lower temperature.
  • Step 6: Therefore, when atmospheric pressure decreases, the boiling point of the liquid also decreases.
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