Define degree of ionisation. Write mathematicl relation for it.

Explanation

Degree of ionisation is the ratio of molecules of the electrolyte which split into ions to the total number of molecules of electrolyte. It is denoted by `alpha`.
`alpha=("Number of molecules of electrolyte which split into ions")/("Total number of molecules of electrolyte")`
For strong electrolytes, `alpha=1` , For weak electrolytes, `alphalt1`.