by increasing pressure,boiling point of liquids increase . why ?
Asked by applee123 | 22nd Nov, 2009, 06:47: PM
For this first understand what is boiling point.
The temperature at which vapour pressure of liquid is equal to the external pressure is called boiling point at that pressure.
We know that vapour pressure increases with increase in temperature.
Now if the external pressure increases, vapour pressure also has to increase to become equal to the external pressure. This means that more heat has to be supplied to increase the vapour pressure. Hence the temperature at which external pressure and vapour pressure become equal to each other is higher than the previous one.
Hence. the boiling point will increase.
Answered by | 23rd Nov, 2009, 09:11: AM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number