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Home Uncategorized Can you vacuum pack liquids? Please explain the reason, thank you.

Can you vacuum pack liquids? Please explain the reason, thank you.

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No, because the boiling point of the liquid decreases with the decrease of air pressure. When the gas above the liquid is pumped out, the liquid will boil due to the decrease of air pressure and produce new gas. The temperature of the remaining liquid will be reduced due to vaporization and heat absorption until the liquid becomes solid.

it is difficult, not impossible
the boiling point of the liquid will decrease with the decrease of the surface pressure, and the vacuum state is equal to the surface pressure of 0, and the boiling point of the liquid will drop to a very low level. So that violent gasification and boiling will occur in the process of vacuum pumping
there are individual examples
for example, mercury barometer, the top of mercury column is vacuum (actually filled with mercury vapor)

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