Which of the following factors affect the vapor pressure of a liquid? Check all that apply. View Available Hint(s) Check all that apply. atmospheric pressure surface area of the liquid temperature amount of liquid type of liquid addition of solute

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judt2208 judt2208

16-03-2020
Chemistry

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Which of the following factors affect the vapor pressure of a liquid? Check all that apply. View Available Hint(s) Check all that apply. atmospheric pressure surface area of the liquid temperature amount of liquid type of liquid addition of solute

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emmartunde emmartunde · Answer 1 · 2020-03-18T02:54:53+01:00

Answer:

Vapour pressure of liquid is affected by its TEMPERATURE, TYPE OF LIQUID, ADDITION OF SOLUTES.

Explanation:

Vapor pressure is the pressure exerted by a vapor in equilibrium with its liquid. Mathematically, the vapor pressure of liquid is written as:

In (Pvap) = -ΔHvap / R * (1/T) + C

ΔHvap is the enthalpy of vaporization and it is constant for specific liquid, T is the temperature and C is a constant. Temperature therefore affect the vapor pressure of a liquid as increase in temperature can cause an increase in vapor pressure.

The type of liquid also affect the vapor pressure. If the molecules bind to each other strongly in the liquid, it increases vapor pressure to be exerted by the liquid but if the type of liquid is one with weak forces of attraction, the vapor pressure is reduced.

Addition of solute to the liquid increases the boiling temperature of liquids thereby reducing it's vapor pressure.

adioabiola adioabiola · Answer 2 · 2021-12-02T14:24:31+01:00

The factors which affect the vapour pressure of a liquid include:

Temperature
TemperatureType of liquid
TemperatureType of liquidAddition of solute.

Definition:

Vapour pressure is simply a measure of the tendency of a material to change into the gaseous state, and as in the ideal gas equation increases with temperature.

The vapour pressure of a liquid is dependent on its enthalpy of vapourization; a quantity which is specific to different types of liquids.

Addition of solute also affects the vapour pressure of a liquid as the solutes act as impurities and the vapour pressure then becomes only a fraction of the vapour pressure original liquid.