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Why do you think the pressure is exerted by the gas on the walls of the container in all directions?
- a)they consist of identical particles
- b)collide with each other during random motion
- c)lack of definite shape
- d)more forces of attraction
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Why do you think the pressure is exerted by the gas on the walls of th...
Why is the pressure exerted by gas on the walls of the container in all directions?
Explanation:
Gas molecules are in constant motion, moving in random directions and colliding with each other and the walls of the container. These collisions transfer momentum, resulting in a force exerted by the gas on the walls of the container. This force per unit area is defined as pressure.
Reasons for gas pressure exerted in all directions:
1. Random motion of gas molecules:
Gas molecules are in constant motion due to their kinetic energy. They move in random directions, colliding with each other and the walls of the container. These collisions are responsible for the transfer of momentum and the resulting force exerted by the gas on the walls. Since the motion of gas molecules is random, the pressure is exerted in all directions.
2. Conservation of momentum:
According to the law of conservation of momentum, the total momentum of a system remains constant unless acted upon by an external force. When gas molecules collide with the walls of the container, they exert a force on the walls and change their momentum. However, the total momentum of the gas molecules remains constant, leading to an equal and opposite force exerted on the gas molecules. This results in pressure being exerted in all directions.
3. Elastic collisions:
Gas molecules undergo elastic collisions, where no kinetic energy is lost during the collision. This means that the gas molecules rebound from the walls of the container with the same speed but in a different direction. As a result, the momentum and force exerted by the gas molecules on the walls are distributed in all directions, leading to pressure being exerted uniformly.
Conclusion:
The pressure exerted by a gas on the walls of the container is the result of the random motion and collisions of gas molecules. These collisions transfer momentum, causing a force to be exerted by the gas on the walls. Due to the random nature of gas molecule motion and the conservation of momentum, this force is exerted uniformly in all directions, resulting in pressure being exerted by the gas on the walls in all directions.
Explanation:
Gas molecules are in constant motion, moving in random directions and colliding with each other and the walls of the container. These collisions transfer momentum, resulting in a force exerted by the gas on the walls of the container. This force per unit area is defined as pressure.
Reasons for gas pressure exerted in all directions:
1. Random motion of gas molecules:
Gas molecules are in constant motion due to their kinetic energy. They move in random directions, colliding with each other and the walls of the container. These collisions are responsible for the transfer of momentum and the resulting force exerted by the gas on the walls. Since the motion of gas molecules is random, the pressure is exerted in all directions.
2. Conservation of momentum:
According to the law of conservation of momentum, the total momentum of a system remains constant unless acted upon by an external force. When gas molecules collide with the walls of the container, they exert a force on the walls and change their momentum. However, the total momentum of the gas molecules remains constant, leading to an equal and opposite force exerted on the gas molecules. This results in pressure being exerted in all directions.
3. Elastic collisions:
Gas molecules undergo elastic collisions, where no kinetic energy is lost during the collision. This means that the gas molecules rebound from the walls of the container with the same speed but in a different direction. As a result, the momentum and force exerted by the gas molecules on the walls are distributed in all directions, leading to pressure being exerted uniformly.
Conclusion:
The pressure exerted by a gas on the walls of the container is the result of the random motion and collisions of gas molecules. These collisions transfer momentum, causing a force to be exerted by the gas on the walls. Due to the random nature of gas molecule motion and the conservation of momentum, this force is exerted uniformly in all directions, resulting in pressure being exerted by the gas on the walls in all directions.
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Community Answer
Why do you think the pressure is exerted by the gas on the walls of th...
As the particles of gas travel in straight lines and move in a random motion and collide with each other and also collide with the walls of the container, the pressure is exerted on the walls of the container in all directions.
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Why do you think the pressure is exerted by the gas on the walls of the container in all directions?a)they consist of identical particlesb)collide with each other during random motionc)lack of definite shaped)more forces of attractionCorrect answer is option 'B'. Can you explain this answer?
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