Question

Can a liquid extra pressure upward s
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Answer 1

Answer:

Yes water molecules being free to move in any direction exert pressure in all directions so they exert pressure upward also. ... If it is heated it gains sufficient Kinetic energy to move upward against force of gravity and thus water evaporates.

Explanation:

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Answer 2

Explanation:

Yes water molecules being free to move in any direction exert pressure in all directions so they exert pressure upward also. ... If it is heated it gains sufficient Kinetic energy to move upward against force of gravity and thus water evaporates.

A fluid is a substance that has no fixed shape and yields easily to external pressure; a gas or  a liquid.

Pressure is exerted by fluids because of their weight. Static fluid pressure is exerted by the depth of the fluid, the density of the fluid and the acceleration of gravity. They exert pressure in all directions, which is given by F=PA

where P is the pressure, and A is the area on which force acts.