Class 11 Exam  >  Class 11 Questions  >  Normal boiling point isa)The boiling point at... Start Learning for Free
Normal boiling point is
  • a)
    The boiling point at 1 bar pressure.
  • b)
    The boiling point at 1 atm pressure.
  • c)
    The boiling point at 2 bar pressure.
  • d)
    The temperature at which a liquid converts to gas.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Normal boiling point isa)The boiling point at 1 bar pressure.b)The boi...
The boiling point of a liquid at 1 atm is also known as the normal boiling point. It has been found that Helium has the lowest normal boiling point (−268.9 °C) because it has very weak intermolecular attractions. Liquids that have high vapour pressures and low boiling points are known to be volatile, which means they evaporate quickly at room temperature. When the temperature increases, molecules start entering the gaseous state, consequently increasing the vapor pressure of the liquid until it comes into equilibrium with the atmospheric pressure.
View all questions of this test
Most Upvoted Answer
Normal boiling point isa)The boiling point at 1 bar pressure.b)The boi...
Understanding Normal Boiling Point
The normal boiling point of a substance is a critical concept in chemistry, particularly in thermodynamics and phase changes.
Definition of Normal Boiling Point
- The normal boiling point is defined as the temperature at which a liquid's vapor pressure equals the atmospheric pressure of 1 atmosphere (atm) or 101.3 kilopascals (kPa).
Importance of Pressure
- Boiling occurs when the vapor pressure of the liquid equals the external pressure applied to it.
- At higher pressures, the boiling point increases, while at lower pressures, the boiling point decreases.
Why Option B is Correct
- Option B states that the boiling point at 1 atm pressure is the correct definition of the normal boiling point.
- This means that under standard atmospheric conditions, the boiling point can be consistently measured and compared across different substances.
Comparison with Other Options
- Option A: The boiling point at 1 bar pressure is close to 1 atm but is not the standard definition.
- Option C: Boiling point at 2 bar pressure would be higher than the normal boiling point.
- Option D: While it describes a phase change, it lacks the essential context of pressure.
Conclusion
- Understanding the normal boiling point is essential for predicting the behavior of liquids under varying pressures and temperatures.
- Thus, the correct answer is option B, as it accurately describes the boiling point at 1 atm pressure.
Free Test
Community Answer
Normal boiling point isa)The boiling point at 1 bar pressure.b)The boi...
1atm is considered as standard pressure at NTP
Attention Class 11 Students!
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.
Explore Courses for Class 11 exam

Top Courses for Class 11

Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer?
Question Description
Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Normal boiling point isa)The boiling point at 1 bar pressure.b)The boiling point at 1 atm pressure.c)The boiling point at 2 bar pressure.d)The temperature at which a liquid converts to gas.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 11 tests.
Explore Courses for Class 11 exam

Top Courses for Class 11

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev