Water boils at 100oC at sea level pressure.
Select the situation(s) where water will boil at greater than 100oC.
Select one or more:
a.
Inside a pressure cooker.
b.
In Armidale, New South Wales (980 metres high).
c.
Inside an evacuated vacuum chamber where the pressure is 10−5 atmospheric pressure.
d.
In the eye of a cyclone or hurricane.
a. Inside a pressure cooker.
b. In Armidale, New South Wales (980 metres high).
c. Inside an evacuated vacuum chamber where the pressure is 10−5 atmospheric pressure.
The correct answer is:
a.
Inside a pressure cooker.
c.
Inside an evacuated vacuum chamber where the pressure is 10−5 atmospheric pressure.
d.
In the eye of a cyclone or hurricane.
In a pressure cooker, the high pressure inside increases the boiling point of water, allowing it to boil at temperatures higher than 100oC.
Similarly, in an evacuated vacuum chamber where the pressure is significantly reduced, the boiling point of water is also lowered, causing it to boil at temperatures greater than 100oC.
In the eye of a cyclone or hurricane, the combination of low atmospheric pressure and high wind speeds can cause water to boil at temperatures above 100oC.