Class 9 Exam > Class 9 Questions > Under which of the following conditions we ca...
Start Learning for Free
Under which of the following conditions we can boil water at room temperature?
- a)At low pressure
- b)At moderate pressure
- c)At very high pressure
- d)At atmospheric pressure
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Under which of the following conditions we can boil water at room temp...
At low pressure
Explanation: Boiling occurs when the vapor pressure of a liquid equals the external pressure. At lower pressures, the boiling point of water decreases. So, if the external pressure is reduced significantly (below atmospheric pressure), water can boil at room temperature. This phenomenon can be observed in a vacuum chamber, where the pressure is significantly reduced, allowing water to boil at room temperature.
Explanation: Boiling occurs when the vapor pressure of a liquid equals the external pressure. At lower pressures, the boiling point of water decreases. So, if the external pressure is reduced significantly (below atmospheric pressure), water can boil at room temperature. This phenomenon can be observed in a vacuum chamber, where the pressure is significantly reduced, allowing water to boil at room temperature.
Most Upvoted Answer
Under which of the following conditions we can boil water at room temp...
Boiling water at room temperature
Low Pressure Condition
Boiling water at room temperature is possible only under low pressure conditions. This is because the boiling point of water decreases as the pressure decreases. At lower pressures, the water molecules have less pressure keeping them together, and thus require less energy to break apart into a gaseous state.
Atmospheric Pressure
At atmospheric pressure, the boiling point of water is 100°C (212°F). This means that water will boil at 100°C only if the pressure surrounding it is equal to or greater than atmospheric pressure. At room temperature, atmospheric pressure is not enough to cause water to boil.
High Pressure Condition
At high pressure, water requires more energy to break apart into a gaseous state. Therefore, the boiling point of water increases as the pressure increases. This means that water will not boil at room temperature under high pressure conditions.
Very High Pressure Condition
Similarly, at very high pressure, the boiling point of water becomes so high that it would require temperatures far beyond room temperature to reach that boiling point.
Conclusion
Hence, the correct option is A, boiling water at room temperature is possible only under low pressure conditions. This phenomenon is used in vacuum distillation, where liquids are distilled at a lower temperature and pressure than atmospheric pressure.
Low Pressure Condition
Boiling water at room temperature is possible only under low pressure conditions. This is because the boiling point of water decreases as the pressure decreases. At lower pressures, the water molecules have less pressure keeping them together, and thus require less energy to break apart into a gaseous state.
Atmospheric Pressure
At atmospheric pressure, the boiling point of water is 100°C (212°F). This means that water will boil at 100°C only if the pressure surrounding it is equal to or greater than atmospheric pressure. At room temperature, atmospheric pressure is not enough to cause water to boil.
High Pressure Condition
At high pressure, water requires more energy to break apart into a gaseous state. Therefore, the boiling point of water increases as the pressure increases. This means that water will not boil at room temperature under high pressure conditions.
Very High Pressure Condition
Similarly, at very high pressure, the boiling point of water becomes so high that it would require temperatures far beyond room temperature to reach that boiling point.
Conclusion
Hence, the correct option is A, boiling water at room temperature is possible only under low pressure conditions. This phenomenon is used in vacuum distillation, where liquids are distilled at a lower temperature and pressure than atmospheric pressure.
Free Test
FREE
| Start Free Test |
Community Answer
Under which of the following conditions we can boil water at room temp...
At low pressure we can boil water at room temp...so the correct answer is A.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer?
Question Description
Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer?.
Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Under which of the following conditions we can boil water at room temperature?a)At low pressureb)At moderate pressurec)At very high pressured)At atmospheric pressureCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup