Question

Why -273°c is the lowest temperature explain in terms of charle law?

Answer 1

the slopes of the lines decrease with increasing pressure, all of the lines extrapolate to the same temperature at V = 0 (−273.15°C = 0 K). ... Charles's law is valid for virtually all gases at temperatures well above their boiling 

Answer 2

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⭐. At - 273 degrees C , volume of the gas become equal to zero . i.e , the gas does not exist.