A-Level Physics OCR B H557

5.2.2: Matter: hot or cold

#5.2.2a(i)

ratios of numbers of particles in quantum states of different energy, at different temperatures (classical approximation only)

#5.2.2a(ii)

qualitative effects of temperature in processes with an activation energy (for example, changes of state, thermionic emission, ionisation, conduction in semiconductors, viscous flow).

#5.2.2b

Make appropriate use of, by sketching and interpreting:

(i) graphs showing the variation of the Boltzmann factor with energy and temperature.

#5.2.2c(i)

ratios of characteristic energies to the energy $kT$

#5.2.2c(ii)

Boltzmann factor $e^{-E/(kT)}$

links to 5.2.2a(i) and (ii)

5.2.1

Matter: very simple

6.1.1

Electromagnetism

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