7
Question
The temperature at which vapour changes into liquid is called its:
The temperature at which vapour changes into liquid is called its:
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Solution
The correct option is D Liquification point
The explanation for the correct option: Option D
- Liquefaction: It is a process by which a substance in its gaseous state is converted to a liquid state.
- When pressure on a gas is increased, its molecules are closer together, and its temperature is reduced, which removes enough energy to make it change from the gaseous to the liquid state.
- This temperature is called the Liquefaction point at which gas is converted into solid.
The explanation for the incorrect option:
Option A: Freezing point: The temperature at which a liquid becomes solid.
Option B: Melting point: The temperature at which a solid is converted into liquid.
Option C: Boiling point: The temperature at which a liquid gets converted into its corresponding vapour at normal atmospheric pressure.
Therefore, Option D is correct.
Liquification point
The explanation for the correct option: Option D
- Liquefaction: It is a process by which a substance in its gaseous state is converted to a liquid state.
- When pressure on a gas is increased, its molecules are closer together, and its temperature is reduced, which removes enough energy to make it change from the gaseous to the liquid state.
- This temperature is called the Liquefaction point at which gas is converted into solid.
The explanation for the incorrect option:
Option A: Freezing point: The temperature at which a liquid becomes solid.
Option B: Melting point: The temperature at which a solid is converted into liquid.
Option C: Boiling point: The temperature at which a liquid gets converted into its corresponding vapour at normal atmospheric pressure.
Therefore, Option D is correct.
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