MCQ
Why does the boiling point of water decrease at higher altitudes?
- ✓Atmospheric pressure is low at higher altitudes.
- BTemperature is low at higher altitudes.
- CAtmospheric pressure is high at higher altitudes.
- DNone of the above.
✓
Answer
Correct option: A.
Atmospheric pressure is low at higher altitudes.
Have a friend put their hands on your shoulder and push down. Now try to jump upwards.
It's difficult to do so right?
You would need more energy to jump higher correct?
The same applies to molecules of water.
The air pressure exerts a force on them which they must overcome in order to boil.
The greater the air pressure the greater the temperature at which the water will boil.
It's difficult to do so right?
You would need more energy to jump higher correct?
The same applies to molecules of water.
The air pressure exerts a force on them which they must overcome in order to boil.
The greater the air pressure the greater the temperature at which the water will boil.
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