Lowering the atmospheric pressure on a liquid
increases the boiling point of the liquid
lowers the boiling point of the liquid
does not affect the boiling point of the liquid
increases the time required for it to boil
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2018
Boiling point is defined as the temperature at which the vapor pressure of a liquid equals the surrounding atmospheric pressure. When the atmospheric pressure is lowered, the liquid needs to reach a lower vapor pressure to start boiling. Since vapor pressure increases with temperature, a lower required vapor pressure is achieved at a lower temperature. Therefore, lowering the atmospheric pressure on a liquid lowers its boiling point.