Question

how does pressure affect the change of state of matter ? explain with the help of solidified CO2 gas

Answer 1

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High pressure may also cause a gas to change phase to a liquid. ... If the pressure is reduced, the temperature drops and the liquid carbon dioxide solidifies into a snow-like substance at the temperature –78ºC. Solid CO2 is called “dry ice.” Another example of a gas that can be in a liquid phase is liquid nitrogen (LN2).

Answer 2

Answer:

Carbon dioxide, for example, is a gas at room temperature and atmospheric pressure, but becomes a liquid under sufficiently high pressure. If the pressure is reduced, the temperature drops and the liquid carbon dioxide solidifies into a snow-like substance at the temperature –78ºC.