________ is a measure of the number of ways that particles can be arranged and the number of ways that the energy can be shared out between the particles. It tells you how much disorder there is.

The OCR A Chemistry specification splits the content into 6 modules:

(1) Development of practical skills in chemistry (2) foundations in chemistry (3) Periodic table and energy (4) Core organic chemistry (5) Physical chemistry and transition metals (6) Organic chemistry and analysis.