Question

Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.​

Answer 1

The best way is add alcohol .

The common way is that decrease the atmospheric pressure .

This will work as per Boyles law ,and boiling point can be decreased.

but it has few restrictions

• You can't decrease pressure simply at normal conditions
• For decreasing pressure you have to go hill tops .

Hence there is a spare way

• Add alcohol

General alcohols like ethanol,butanol can decrease the boiling point of water

Answer 2

It can be done. Normally the boiling point of water is 100°C. It will boil at temperature greater than 100°C more quickly. Water can be boiled at 95°C but for that the atmospheric pressure of the water should be decreased which will decrease the boiling point of water.

Concept :

To boil water at 95°C, decrease the atmospheric pressure.

At 105°C, the water will be boiling quickly than normal at 100°C.