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Effect of Change of Pressure on State Change of Matter

Applying pres...

Question

Applying pressure and reducing temperature can liquefy gases.

A

True

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B

False

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Solution

The correct option is A True
True. Solid carbon dioxide converts directly to gaseous state on decrease of pressure to 1 atmosphere without coming into liquid state. This is the reason that solid carbon dioxide is also known as dry ice.

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Q. Applying pressure and reducing temperature can liquefy gases.

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Q. Assertion (A): Gases do not liquefy above their critical temperature, even on applying high pressure.
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