Class 11 Exam > Class 11 Questions > At absolute zero temperature may be defined a...
Start Learning for Free
At absolute zero temperature may be defined as that temperature at which
- a)Volume is maximum
- b)Root mean square velocity of the gas molecule reduces to zero
- c)Temperature is 273 K
- d)Mass of molecules of gas is zero
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
At absolute zero temperature may be defined as that temperature at whi...
At 0K temperature we know that there is no molecular motion, that is the KE of the particles gets 0. Thus we can say the combined KE of a gaseous system is zero, but as there combined mass cant be zero thus the combined of the square of velocities of the particles is zero, which means that the root mean square velocity of the gas is zero.
Free Test
FREE
| Start Free Test |
Community Answer
At absolute zero temperature may be defined as that temperature at whi...
Explanation:
Absolute Zero:
Absolute zero is the lowest possible temperature that can be reached, at which the particles of matter have the least amount of energy, or zero thermal energy. It is the temperature at which the entropy of a pure, perfect crystalline solid is zero, and at which all thermal motion ceases.
Root mean square velocity of molecules:
The root mean square velocity of gas molecules is defined as the square root of the average of the squares of the velocities of individual molecules of gas. It is denoted by vrms. The velocity of individual gas molecules depends on the temperature of the gas. At higher temperatures, the velocity of gas molecules is high, and at lower temperatures, the velocity of gas molecules is low.
Relation between temperature and root mean square velocity:
The relation between temperature and root mean square velocity is given by the equation- vrms = √(3kT/m), where k is the Boltzmann constant, T is the temperature in Kelvin, and m is the mass of the molecule.
Answer:
The correct answer is option 'B', Root mean square velocity of the gas molecule reduces to zero. At absolute zero temperature, the particles of matter have the least amount of energy, or zero thermal energy. As a result, the velocity of gas molecules becomes zero, which means the root mean square velocity of the gas molecules reduces to zero. At absolute zero temperature, the particles of matter come to rest, and all thermal motion ceases.
It is important to note that at absolute zero temperature, the volume of the gas also becomes zero, and the mass of molecules of gas does not become zero, as stated in option 'D'. Option 'C' is also incorrect as the temperature at absolute zero is not 273 K.
Absolute Zero:
Absolute zero is the lowest possible temperature that can be reached, at which the particles of matter have the least amount of energy, or zero thermal energy. It is the temperature at which the entropy of a pure, perfect crystalline solid is zero, and at which all thermal motion ceases.
Root mean square velocity of molecules:
The root mean square velocity of gas molecules is defined as the square root of the average of the squares of the velocities of individual molecules of gas. It is denoted by vrms. The velocity of individual gas molecules depends on the temperature of the gas. At higher temperatures, the velocity of gas molecules is high, and at lower temperatures, the velocity of gas molecules is low.
Relation between temperature and root mean square velocity:
The relation between temperature and root mean square velocity is given by the equation- vrms = √(3kT/m), where k is the Boltzmann constant, T is the temperature in Kelvin, and m is the mass of the molecule.
Answer:
The correct answer is option 'B', Root mean square velocity of the gas molecule reduces to zero. At absolute zero temperature, the particles of matter have the least amount of energy, or zero thermal energy. As a result, the velocity of gas molecules becomes zero, which means the root mean square velocity of the gas molecules reduces to zero. At absolute zero temperature, the particles of matter come to rest, and all thermal motion ceases.
It is important to note that at absolute zero temperature, the volume of the gas also becomes zero, and the mass of molecules of gas does not become zero, as stated in option 'D'. Option 'C' is also incorrect as the temperature at absolute zero is not 273 K.
|
Explore Courses for Class 11 exam
|
|
Top Courses for Class 11View all
Question Description
At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer?.
At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer?.
Solutions for At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect 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 At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice At absolute zero temperature may be defined as that temperature at whicha)Volume is maximumb)Root mean square velocity of the gas molecule reduces to zeroc)Temperature is 273 Kd)Mass of molecules of gas is zeroCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 11 tests.
|
|
Explore Courses for Class 11 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup