Physics Exam > Physics Questions > Which of the following is/are false?Select on...
Start Learning for Free
Which of the following is/are false?
Select one or more:
Select one or more:
- a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the same
- b)Absolute zero degree temperature is not zero energy temperature
- c)Two different gases at the same temperature and pressure have equal root mean square velocities
- d)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of molecules
Correct answer is option 'A,C,D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Which of the following is/are false?Select one or more:a)The rms speed...
At absolute temperature, kinetic energy of gas molecules becomes zero but they possess potential energy so we can say that at absolute zero degree temperature is not zero energy temperature.
The correct answers are: Two different gases at the same temperature and pressure have equal root mean square velocities, The rms speed of the molecules of different ideal gases, maintained at some temperature are the same, Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of molecules
The correct answers are: Two different gases at the same temperature and pressure have equal root mean square velocities, The rms speed of the molecules of different ideal gases, maintained at some temperature are the same, Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of molecules
Most Upvoted Answer
Which of the following is/are false?Select one or more:a)The rms speed...
False Statements Explained:
a) The rms speed of the molecules of different ideal gases, maintained at some temperature are the same.
b) Absolute zero degree temperature is not zero energy temperature.
c) Two different gases at the same temperature and pressure have equal root mean square velocities.
d) Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of molecules.
Explanation:
a) The rms (root mean square) speed of molecules in a gas is directly proportional to the square root of its temperature. It can be calculated using the equation:
v(rms) = √(3kT/m)
where v(rms) is the root mean square velocity, k is the Boltzmann constant, T is the temperature, and m is the molar mass of the gas.
Since the molar mass is different for different gases, their rms speeds will also be different at the same temperature. Therefore, statement a) is false.
b) Absolute zero degree temperature, also known as 0 Kelvin or -273.15 degrees Celsius, is the lowest possible temperature in the universe. At absolute zero, all molecular motion ceases, and the system has minimal energy. Therefore, statement b) is true.
c) The root mean square velocity of a gas is directly proportional to the square root of its temperature. Since temperature is the same for both gases in this scenario, their root mean square velocities will also be equal. Therefore, statement c) is false.
d) At NTP (normal temperature and pressure), both hydrogen and oxygen exist in the form of ice. However, the molar mass of oxygen is much higher than that of hydrogen. Since the number of molecules in a given sample is determined by the molar mass and Avogadro's number, the sample of oxygen ice will have a larger number of molecules compared to the sample of hydrogen ice. Therefore, statement d) is true.
a) The rms speed of the molecules of different ideal gases, maintained at some temperature are the same.
b) Absolute zero degree temperature is not zero energy temperature.
c) Two different gases at the same temperature and pressure have equal root mean square velocities.
d) Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of molecules.
Explanation:
a) The rms (root mean square) speed of molecules in a gas is directly proportional to the square root of its temperature. It can be calculated using the equation:
v(rms) = √(3kT/m)
where v(rms) is the root mean square velocity, k is the Boltzmann constant, T is the temperature, and m is the molar mass of the gas.
Since the molar mass is different for different gases, their rms speeds will also be different at the same temperature. Therefore, statement a) is false.
b) Absolute zero degree temperature, also known as 0 Kelvin or -273.15 degrees Celsius, is the lowest possible temperature in the universe. At absolute zero, all molecular motion ceases, and the system has minimal energy. Therefore, statement b) is true.
c) The root mean square velocity of a gas is directly proportional to the square root of its temperature. Since temperature is the same for both gases in this scenario, their root mean square velocities will also be equal. Therefore, statement c) is false.
d) At NTP (normal temperature and pressure), both hydrogen and oxygen exist in the form of ice. However, the molar mass of oxygen is much higher than that of hydrogen. Since the number of molecules in a given sample is determined by the molar mass and Avogadro's number, the sample of oxygen ice will have a larger number of molecules compared to the sample of hydrogen ice. Therefore, statement d) is true.
|
Explore Courses for Physics exam
|
|
Similar Physics Doubts
Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer?
Question Description
Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer?.
Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer?.
Solutions for Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Physics.
Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free.
Here you can find the meaning of Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer?, a detailed solution for Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? has been provided alongside types of Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following is/are false?Select one or more:a)The rms speed of the molecules of different ideal gases, maintained at some temperature are the sameb)Absolute zero degree temperature is not zero energy temperaturec)Two different gases at the same temperature and pressure have equal root mean square velocitiesd)Given sample of ice of hydrogen and ice of oxygen both at NTP oxygen sample has a large number of moleculesCorrect answer is option 'A,C,D'. Can you explain this answer? tests, examples and also practice Physics tests.
|
|
Explore Courses for Physics 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
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup