Traditional Culture Encyclopedia - Weather inquiry - Why can't the gas cylinder shake?

Why can't the gas cylinder shake?

The principle of gas cylinders is that the solubility of camphor, potassium nitrate and ammonium chloride in the mixed solvent of water and ethanol will change with the temperature to observe the weather. Shaking the gas cylinder will cause a weak pressure difference between the inside and outside of the bottle, which will affect the solubility of ammonium chloride, potassium nitrate and camphor, and make the final observation result different from the actual weather situation.