Not only acids and bases dissociate, water dissociates too: and the equilibrium of this reaction is described by the equation. 1.7. However, in practice we use simplified version of this equation, called water ionization constant (sometimes called also water ion product) 1.4.
A lightning flash preceding its thunder by one second would be approximately 350 metres (0.22 mi) in distance; a delay of three seconds would indicate a distance of about one kilometer (0.62 mi) (3Ã340 m). A flash preceding thunder by five seconds would indicate a distance of approximately one mile (1.6 km) (5Ã340 m).
Thunder Fun Facts: 1  To judge how close lightning is, count the seconds between the flash and the thunderclap. Each second represents about 300m (984.25ft). 2  Thunder is not only heard during thunderstorms. It is uncommon, but not rare, to hear thunder when it is snowing. 3  Lightning does not always create thunder.