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Duffusion

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    Y9
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  • The net movement of particles from a region of high concentration to a region of lower concentration due to random movement is the definition of:
    diffusion
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  • Diffusion occurs only in solids True- False
    False
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  • What is a solute? A substance dissolved in another substance - the substance doing the dissolving
    A substance dissolved in another substance
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  • What is a solvent? The one doing the dissolving - The substance dissoved in another substance
    The one doing the dissolving
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  • At the top of a mountain, the air pressure will be ............................. low - high
    low
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  • Which container will have lower pressure? left - right - they both have the same pressure
    left
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  • Pressure can be exerted by solids, liquids and gases. ? TRUE - FALSE
    TRUE
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  • How can we increase the gas pressure inside a sealed container? Increase the number of particles inside the container- Increase the temperature -Decrease the volume of the container -All of these
    All of these
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  • The reason gases can be compressed is because: ? The particles are very close together. - The particles are merely vibrating. - The particles are unable to move.- The particles are very far apart.
    The particles are very far apart.
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  • Cooling a plastic bottle in a freezer will ......................... the air particles inside. speed up - slow down
    slow down
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  • Gas pressure is caused by particles colliding with ............................................. each other only. - the walls of a container.
    the walls of a container.
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  • In what direction(s) does air exert pressure? In all directions - In no direction -there is no pressure
    In all directions
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  • If a hairspray can is heated, what can be expected of the pressure of the gas inside the can? The pressure will increase -The pressure will decrease
    The pressure will increase
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