1.

Water can be boiled more quickly on the top of a mountain. 1. Do you agree? 2. What is the reason?3. What is called boiling point of a liquid? 4. How normal boiling point and standard boiling point differ?

Answer»

1. Yes. 

2. As we move to the top of a mountain atmospheric pressure decreases and hence boiling point decreases. So water boils quickly. 

3. Boiling point of a liquid is the temperature at which the vapour pressure of a liquid is equal to the external pressure or atmospheric pressure. 

4. The boiling point at 1 atm pressure is called normal boiling point. The boiling point at 1 bar pressure is called standard boiling point.



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