pressure of gases
- Created by: aleena147
- Created on: 30-10-19 19:09
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- pressure of gases
- colliding gas particles create pressure
- in a gas, particles move around in random directions
- as they move about, they randomly bang into each other and on the walls of the container
- when they collide with something they exert a force on it
- all these collisions cause a net force on the inside surface of the container
- the more particles there are in a given volume the more often they'll collide and the higher the pressure
- all these collisions cause a net force on the inside surface of the container
- when they collide with something they exert a force on it
- as they move about, they randomly bang into each other and on the walls of the container
- in a gas, particles move around in random directions
- changing temperature changes pressure
- the pressure a gas exerts on a container depends on how fast the particles are moving and how often they hit walls
- if u heat the gas in a concealed container, energy is transferred to the KE store, the faster the particles move the more collisions and the higher the pressure
- if the particles are being cooled, particles have less energy and move slower which means less collisions and low pressure
- the pressure a gas exerts on a container depends on how fast the particles are moving and how often they hit walls
- at constant temperature "pV=constant"
- if volume is decreased n its the same amount of gas pressure would increase
- if volume increased, collisions would be fewer and pressure would be lower
- for a fixed amount of gas at a constant temp,, leads to this equation
- pressure*volume=constant
- colliding gas particles create pressure
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