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Q: Which of the following process changes liquids directly into gases (vapour)?
  • A. Vapour formation
  • B. Sublimation
  • C. Conversation
  • D. Vaporization
Correct Answer: Option D - The process in which a liquid is changed to vapour form (gas) at its boiling point is called vaporization. While condensation is the process where a vapour of liquid changes to its liquid form on cooling sublimation is the process where a solid changes to gaseous stage directly.
D. The process in which a liquid is changed to vapour form (gas) at its boiling point is called vaporization. While condensation is the process where a vapour of liquid changes to its liquid form on cooling sublimation is the process where a solid changes to gaseous stage directly.

Explanations:

The process in which a liquid is changed to vapour form (gas) at its boiling point is called vaporization. While condensation is the process where a vapour of liquid changes to its liquid form on cooling sublimation is the process where a solid changes to gaseous stage directly.