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The normal boiling point of a liquid is defined as

JAMB 1978

The normal boiling point of a liquid is defined as

  • A. the temperature at which its vapour pressure equals the atmospheric pressure
  • B. the temperature at which bubbles begin to form
  • C. the temperature at which the vapour pressure equals 1 temperature
  • D. the temperature at which the rate of condensation of vapour equals the rate of vaporisation of the liquid
  • E. the temperature at which the space above the liquid is saturated
Correct Answer: Option A
Explanation

The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.


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