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The three different physical states of matter are:
air
solid
liquid
gas
Changes of state of matter can occur by:
melting
water
freezing
condensation
Food is being prepared in the kitchen, you are in your room. The process by which the smell of the food reaches you is called?
melting
condensation
diffusion
decolourisation
Describe the movement of particles in a solid?
Describe the movement of particles in a gas?
Ammonia gas has an Mr (relative molecular mass) of 15, Hydrogen chloride gas has an Mr of 35. Which gas has a higher rate of diffusion?
Hydrochloric gas
None
Ammonia gas
Changes of state can be produced by changing ##temperature## or ##pressure## of the particles.
The rate of diffusion of a gas is dependant on ##molecular## size and ##mass## of the gas particles.
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