Which of the following statements about the boiling point of a liquid is correct

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Question: Which of the following statements about the boiling point of a liquid is correct?

Options:

Correct Answer: It is the temperature at which vapor pressure equals atmospheric pressure

Solution:

The boiling point is the temperature at which the vapor pressure of a liquid equals the atmospheric pressure.

Which of the following statements about the boiling point of a liquid is correct?

Which of the following statements about the boiling point of a liquid is correct?

Step 1: Understand what boiling point means. It is the temperature at which a liquid turns into vapor.
Step 2: Learn about vapor pressure. This is the pressure exerted by the vapor of a liquid when it is in a closed container.
Step 3: Know that atmospheric pressure is the pressure exerted by the weight of the air above us.
Step 4: Realize that boiling occurs when the vapor pressure of the liquid becomes equal to the atmospheric pressure.
Step 5: Conclude that the boiling point is the temperature where these two pressures are equal.

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