Define evaporation. from Chemistry States of Matter

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 Multiple Choice QuestionsShort Answer Type

41.

What is the equation for the kinetic energy of 1 mole of a gas?

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42.

Why there is no change in temperature when an ideal gas expands?

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43.

Find the density of a gas with molecular mass 44.

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44.

Do all the molecules of the same gas have the same velocity? If not, give a reason for it ?

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45.

Define critical temperature of a gas.

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46.

Define critical pressure.

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47.

Define critical volume.

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48.

Define evaporation.


Evaporation is the process of the escape of liquid molecules from its surface into the gas phase. It depends on upon the nature of liquid, temperature and surface area of the liquid.

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49.

Define vapour pressure.

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50.

Define boiling point of liquid.

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