Which of the following explains the change in pressure when
volume increases at constant temperature?
(a) As the volume increases, the particles slow down, causing less
collisions and less pressure
(b) As the volume increases, the particles speedup, causing more
collisions and more pressure
(c) As the volume increases the particles have more space to more
and collide less with walls, causing pressure to decrease
(d) As the volume increases, the particles have more space to move
and collide less with walls, causing pressure to increase?
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Answer:
D) as the volume increases the particles have more space to move and collide less with walls causing pressure to increase
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The following explains the change in pressure when the volume increases at constant temperature:
(c) As the volume increases the particles have more space to more and collide less with walls, causing pressure to decrease.
- At constant temperature, pressure varies inversely with the volume.
- If we increase the volume, the particles can move freely and have more space.
- Since the space is more, the frequency of collision with the walls of the container decreases.
- Hence the pressure is decreased in this case.
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