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(Oxford) Solutions for B5: General Relativity and Cosmology, 2011-2016£6.24
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Title: First chapter IGCSE contains basic definitions of molecules, atoms and diffusion
Description: The first chapter required for the part of chemistry in the IGCSE co-ordinated science. These summaries helped me a lot and I hope you also benefit from them. Please give them a try!
Description: The first chapter required for the part of chemistry in the IGCSE co-ordinated science. These summaries helped me a lot and I hope you also benefit from them. Please give them a try!
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Chapter 1
...
In solids the particles
are held tightly together in a fixed position, that’s why they have a definite
shape
...
However, they can’t change position as they
have bonds pulling them together
...
They take up
the shape of the container they are held in
...
Gases: They have no fixed volume or shape
...
The particles are further apart,
with enough energy to move apart from each other and are constantly
moving, as the bonds have been broken completely
...
Pressure in a gas: The pressure exerted by a gas is caused by the gas
particles bombarding the sides of the container
...
Changes of state:
Melting: Solid to liquid
...
Condensation: Gas to liquid
...
Sublimation: Solid to gas
...
Atom: Is the smallest amount of an element
...
Ion: An ion is a charged molecule or atom, when an atom or molecule
looses one or more electrons it become a positive ion (cation)
...
Diffusion:
The random mixing and moving of particles in liquids and gases is called
diffusion
...
g
...
Title: First chapter IGCSE contains basic definitions of molecules, atoms and diffusion
Description: The first chapter required for the part of chemistry in the IGCSE co-ordinated science. These summaries helped me a lot and I hope you also benefit from them. Please give them a try!
Description: The first chapter required for the part of chemistry in the IGCSE co-ordinated science. These summaries helped me a lot and I hope you also benefit from them. Please give them a try!