Under which of the following conditions we can boil water at room temperature?
  • a)
    At low pressure
  • b)
    At high pressure      
  • c)
    At very high pressure
  • d)
    At atmospheric pressure
Correct answer is option 'A'. Can you explain this answer?

Class 9 Question

By Saksham Garg · Feb 28, 2020 ·Class 9
7 Answers
Madhura Patil answered Feb 28, 2020
Option a

Atul Koyal answered Feb 29, 2020
Option isA the correct answer

Azad Gamers answered Mar 01, 2020
Can you explain

Sanchit answered Dec 26, 2019
Under low pressure condition we can boil water at room temperature.

Explanation:
When we heat the water, the temperature of the water rises. Due to this the water molecule “gains kinetic energy” and starts to move and escapes to the atmosphere in the form of vapor.  
At room temperature the water has specific vapor pressure. The boiling of water depends upon the external pressure of the water. When the external pressure of the water is lowered, the water will start to boil at room temperature. For this purpose vacuum is used.

Seema Parveen answered Mar 01, 2020
A) Under low pressure condition we can boil water at room temperature. Explanation: ... Due to this the water molecule “gains kinetic energy” and starts to move and escapes to the atmosphere in the form of vapor. At room temperature the water has specific vapor pressure.

Madhu answered Mar 01, 2020
At low pressure..

Nitish Kumar answered Mar 01, 2020
It is essential that the temperature must increase until the vapor pressure is equal to the outside pressure and a bubble can form. At the low pressure the liquid requires less energy to change to a gaseous phase , and thus  boiling occurs easily at a lower temperature.

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