Solution:
Temperature and pressure affect the boiling point of the liquid.The boiling point depends on the strength of the bond present between molecules. For this reason, adding a solute to the liquid will create stronger bonds between molecules, raising the solution's boiling point without increasing pressure. The boiling point of liquid increases with an increase in pressure. The lower the gas pressure above a liquid, the lower the temperature at which the liquid will boil. Hence cooking at high altitudes is difficult. The boiling point of a liquid is lower than the normal boiling point if external pressure is less than one atmosphere.
