3 years ago

What two forces limit the height to which capillary action will take water up a tube?

1 answer:

6 0

Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules. The height to which capillary action will take water in a uniform circular tube is limited by surface tension and, of course, gravity.

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The atomic number identifies which of the following?

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Explanation:

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Fill in the left side of this equilibrium constant equation for the reaction of nitrous acid (HNO_2) with water.

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Answer:

$Ka=\frac{[H^+][NO_2^-]}{[HNO_2]}$

Explanation:

The reaction

The reaction of nitrous acid with water is a dissociation reaction of an acid:

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$HNO_2(aq) \longrightarrow H^+(aq) + NO_2^-(aq)$

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