Which of the following statements correctly defines the boiling point of a liquid? The temperature...

Physics

WAEC 2016

Which of the following statements correctly defines the boiling point of a liquid? The temperature at which the

A. saturated vapour pressure equals the atmospheric pressure
B. molecules leaves the liquid at a rate equal to the rate at which they return
C. molecules leave the liquid at a rate higher than that at which they return
D. molecules leave the liquid at a rate lower than the rate at which they return

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Your School's Whatsapp Group - Join Us now

Correct Answer: Option A

Explanation

The boiling point of a liquid is the temperature at which the vapor pressure of a liquid is equal to the pressure of the atmosphere on the liquid, equal to 212°F (100°C) for water at sea level.

Previous Next

Go back to Phy classroom

Report an Error Ask A Question Download App