Answer:
A. an increase in boiling point
Explanation:
A decrease in vapor pressure will cause an increase in the boiling point of a substance.
An increase in vapor pressure will decrease the boiling point.
- Vapor pressure is a measure of the tendency of a liquid to change into gaseous form.
- The boiling point is the temperature at which the vapor pressure equals the atmospheric pressure.
- When vapor pressure reduces, there would be an elevation of the boiling point.
- This is why pressure cookers causes water to boil faster because they lower the boiling point.
