Question

The boiling point of a liquid with the increase of pressure, ______________.

• A. decreases
• B. increases
• C. remains constant
• D. changes according to the weather

Answer 1

Answer: (B)

increases

Since a liquid vaporises when molecules moves faster and farther apart but while increasing pressure, we apply an external force to hold molecules closer to each other. Hence, molecules will require more energy to overcome this resistance thus this increases boiling point of liquid. Hence, the boiling point of a liquid with the increase of pressure, increases.