Ball lightning is a faintly luminous ball of gas floating freely in the air. It usually occurs after a thunderstorm. According to one model, lightning consists of an ideal gas, which is a complex compound, each molecule of which contains a nitrogen ion associated with several water molecules. Lightning temperature t = 600°C, ambient air temperature t0 = 20°C. How many water molecules does each nitrogen ion bind? The electrons lost by the nitrogen atom are bound to the molecules

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