Question

Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point of the liquid will always decrease increase or decrease depending on the molar mass of the liquid O increase or decrease depending on the ideality of the liquid increase or decrease depending on the dipole-dipole forces of the liquid always increase

Answer 1

$\bf (3) \text{ Vapor pressure of a liquid depends on temperature, as temperature increases}\\ \text{ vapor pressure increases, it also depends on intermolecular forces, more intermolecular}\\ \text{ forces less will be the vapor pressure and surface area has no effect on vapor pressure}$

$\text{ The answer is}$

$\textbf{ }$

the temperature of the liqiud and intermolecular forces of attraction in the liquid

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$\bf (4) \text{ The temperature at which the vapor pressure of the liquid is equal to}\\ \text{ the atmospheric pressure is called boiling point }$

$\text{ The answer is}$

$\bf \text{ The boiling point of the liquid }always\;increases.$

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$\bf(5)\text{ When the adhesive forces are stronger than the cohesive forces, which becomes}\\ \text{ surface tension, in the liquid.}$

$\text{ The answer is}$

$\textbf{ Strong intermolecular forces of attraction between glass and water.}$

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$\bf (6)\text{ Crystalline substances have well defined edges, long range order, fixed melting point}$$\text{ The answer is}$

$\bf none\; of\;the \;above.$

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$\bf(7)\text{ The line BE represents } \underline{boiling\; points}\text{ at different pressures}$

$\text{ The answer is}$

$\bf boiling\; points$