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JAMB Physics 2013 Question 22

Question 22

Change of State and Vapours

What will happen to the boiling point of pure water when it is heated in a place 30m below sea level?

  1. A.It will be more than 100°C.
  2. B.It will be less than 100°C.
  3. C.It will still be at 100°C.
  4. D.It will be fluctuating.
Show the answer and explanation

Answer: A (It will be more than 100°C.)

Explanation

Below sea level the atmospheric pressure is greater than normal, and a higher pressure raises the boiling point above 100°C.