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Developing fuels A Level Salters Advanced Chemistry for OCR B £6.99   Add to cart
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Developing fuels A Level Salters Advanced Chemistry for OCR B
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Everything you need to know, grade A student, dyslexia friendly lots of pictures, all of the equations for this topic included, no waffle straight to the point, not just copied from the textbook.

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  • February 24, 2021
  • 16
  • 2020/2021
  • Lecture notes
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Topic 2 - Developing Fuels

, Ideal gases
Simple particle model




Temperature scales
● The kelvin absolute temperature scale is most fundamental
because it begins at zero.
● A change of 1oC is the same as a change of 1 K.


Pressure
● Caused by collisions of gas particles on the wall of the
container.
● Pressure = force per unit area


Ideal gas (gas constant is always 8.314)
To describe gases more precisely you need to
consider temperature, pressure and volume.
● Theoretical gases that follow a set of gas
laws.
● Many gases behave like ideal gases at
“normal” temperature/pressure.
● We all assume all gases behave like this
○ Randomly moving particles
○ Particles negligible in size compared to separation
○ No intermolecular forces (not true)

, Change of Change of volume on Change of
temperature on the the pressure temperature on the
pressure volume




Avogadro's law
One mole of any gas occupies a volume of 24dm3 at room
temperature and pressure 25oC, 1 atmospheric pressure (101KPa)
● The particles of a gas are negligible in size compared to the
separation of the particles.
● The size of the molecules makes no difference to the volume
of a gas.
● Equal volumes of different gases at the same temperature and
pressure contain the same number of moles.
Moles = volume
24dm3




Hydrocarbons
● Compounds containing atoms of hydrogen and carbon only

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