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According to the kinetic theory of gases,
- a)collisions are always elastic
- b)heavier molecules transfer more momentum to the wall of the container
- c)only a small number of molecules have a very high velocity
- d)between the collisions, the molecules move in straight lines with constant velocities
Correct answer is option 'A,C,D'. Can you explain this answer?
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According to the kinetic theory of gases,a)collisions are always elas...
Understanding Kinetic Theory of Gases
The kinetic theory of gases provides a microscopic explanation of gas behavior, emphasizing the movement of molecules. Let’s explore the correct options: A, C, and D.
Elastic Collisions
- Collisions between gas molecules are considered elastic, meaning that there is no net loss of kinetic energy in the system.
- In elastic collisions, the total kinetic energy before and after the collision remains constant, which is a key assumption of the kinetic theory.
Velocity Distribution
- Not all molecules in a gas have the same speed. The distribution of molecular speeds is typically a bell curve, where a small fraction of molecules have very high velocities.
- This leads to the understanding that while some molecules may move slowly, others can move at speeds much greater than average.
Straight Line Motion
- Between collisions, gas molecules travel in straight lines at constant velocities.
- This assumption forms the basis for calculating pressure and temperature in gases, as the distance covered in these straight paths contributes to the overall behavior of the gas.
Why Options B is Incorrect
- The statement regarding heavier molecules transferring more momentum to the walls is misleading. While heavier molecules do have more momentum due to their mass, the average momentum transfer to the wall is influenced by the speed and number of collisions, not just the mass.
In summary, options A, C, and D effectively encapsulate the foundational principles of the kinetic theory of gases, while option B misinterprets the relationship between mass and momentum transfer. Understanding these principles is essential for grasping gas behavior in various scientific and engineering applications.
The kinetic theory of gases provides a microscopic explanation of gas behavior, emphasizing the movement of molecules. Let’s explore the correct options: A, C, and D.
Elastic Collisions
- Collisions between gas molecules are considered elastic, meaning that there is no net loss of kinetic energy in the system.
- In elastic collisions, the total kinetic energy before and after the collision remains constant, which is a key assumption of the kinetic theory.
Velocity Distribution
- Not all molecules in a gas have the same speed. The distribution of molecular speeds is typically a bell curve, where a small fraction of molecules have very high velocities.
- This leads to the understanding that while some molecules may move slowly, others can move at speeds much greater than average.
Straight Line Motion
- Between collisions, gas molecules travel in straight lines at constant velocities.
- This assumption forms the basis for calculating pressure and temperature in gases, as the distance covered in these straight paths contributes to the overall behavior of the gas.
Why Options B is Incorrect
- The statement regarding heavier molecules transferring more momentum to the walls is misleading. While heavier molecules do have more momentum due to their mass, the average momentum transfer to the wall is influenced by the speed and number of collisions, not just the mass.
In summary, options A, C, and D effectively encapsulate the foundational principles of the kinetic theory of gases, while option B misinterprets the relationship between mass and momentum transfer. Understanding these principles is essential for grasping gas behavior in various scientific and engineering applications.
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Community Answer
According to the kinetic theory of gases,a)collisions are always elas...
All the above statements are true according to the kinetic theory of gases.
The collisions of the gas molecules are elastic and the energy lost by one molecule is equal to the energy gained by the other.
Hence, at a given temperature, the average energy of the gas is constant.
Heavier molecules transfer more momentum to the walls of the container. But this is not the postulate of the kinetic theory of gases.
Only a small fraction of the molecules possess high velocity (Vr.m.s), whereas the maximum number of molecules possess a lower velocity called the most probable velocity (Vmp).
The molecules move in random, zig-zag straight lines. The motion is referred to as Brownian motion.
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According to the kinetic theory of gases,a)collisions are always elasticb)heavier molecules transfer more momentum to the wall of the containerc)only a small number of molecules have a very high velocityd)between the collisions, the molecules move in straight lines with constant velocitiesCorrect answer is option 'A,C,D'. Can you explain this answer?
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According to the kinetic theory of gases,a)collisions are always elasticb)heavier molecules transfer more momentum to the wall of the containerc)only a small number of molecules have a very high velocityd)between the collisions, the molecules move in straight lines with constant velocitiesCorrect answer is option 'A,C,D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about According to the kinetic theory of gases,a)collisions are always elasticb)heavier molecules transfer more momentum to the wall of the containerc)only a small number of molecules have a very high velocityd)between the collisions, the molecules move in straight lines with constant velocitiesCorrect answer is option 'A,C,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for According to the kinetic theory of gases,a)collisions are always elasticb)heavier molecules transfer more momentum to the wall of the containerc)only a small number of molecules have a very high velocityd)between the collisions, the molecules move in straight lines with constant velocitiesCorrect answer is option 'A,C,D'. Can you explain this answer?.
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