- temperature of the liquid. A cup of hot water will evaporate more quickly than a cup of cold water.
- exposed surface area of the liquid. …
- presence or absence of other substances in the liquid. …
- air movement. …
- concentration of the evaporating substance in the air.
What are the factors not affecting evaporation?
Which of the following does not affect the rate of evaporation (1)
wind speed (2) temperature (3) surface area (4) insoluble heavy impurities
. The evaporation rate is dependent on certain variables such as temperature, surface area, wind speed, etc. But not depend on the mixture of absolute heavy impurities.
What are the factors that affect evaporation?
Liquids changes into vapour by the process of evaporation. The factors that affect the rate of evaporation of liquids are
temperature, surface area, wind speed, and humidity
.
What are the factors that affect evaporation Class 9?
- Temperature: As the temperature increases, the rate of evaporation also increases. …
- Surface area: As the surface area increases, the rate of evaporation increases. …
- Humidity: The rate of evaporation decreases with an increase in humidity.
What increases rate of evaporation?
Evaporation increases with a
decrease in humidity
If the temperature increases and the wind speed and humidity stay constant, then the rate of evaporation will increase since warmer air can hold more water vapor than colder air.
What is evaporation very short answer?
Evaporation is the process by which
water changes from a liquid to a gas or vapor
. Evaporation is the primary pathway that water moves from the liquid state back into the water cycle as atmospheric water vapor.
Which has highest rate of evaporation?
Nail polish remover
has the highest rate of evaporation. It contains acetone, the evaporation happens faster due to less intermolecular force.
What is difference between evaporation and boiling?
Evaporation is a normal process that occurs when the liquid form changes into the gaseous form; while causing an increase in the
pressure
or temperature. Boiling is an unnatural process where the liquid gets heated up and vaporized due to continuous heating of the liquid.
What is evaporation Class 9 Example?
Some examples of evaporation are:
salt production, crystallization, drying of clothes, water evaporates into water vapour
, etc. -Any changes in the state of a substance occur due to either increase or decrease in temperature, due to which the molecules either speed up or slow down.
What is the effect of temperature on evaporation Class 9?
The rate of evaporation
increases on increasing temperature of the liquid
. When the temperature of a liquid is increased by heating it, more particles of the liquid get enough kinetic energy to go into vapour state. This increases the rate of evaporation.
What are the 4 factors that affect the rate of evaporation?
- temperature of the liquid. A cup of hot water will evaporate more quickly than a cup of cold water.
- exposed surface area of the liquid. …
- presence or absence of other substances in the liquid. …
- air movement. …
- concentration of the evaporating substance in the air.
Does evaporation increase with temperature?
Although water can evaporate at low temperatures, the
rate of evaporation increases as the temperature increases
. This makes sense because at higher temperatures, more molecules are moving faster; therefore, it is more likely for a molecule to have enough energy to break away from the liquid to become a gas.
What is evaporation rate?
Safety Data Sheets: An evaporation rate is
the rate at which a material will vaporize (evaporate, change from liquid to vapor) compared to the
rate of vaporization of a specific known material. This quantity is a ratio, therefore it is unitless.
What is evaporation explain?
Evaporation
happens when a liquid turns into a gas
. It can be easily visualized when rain puddles “disappear” on a hot day or when wet clothes dry in the sun. In these examples, the liquid water is not actually vanishing—it is evaporating into a gas, called water vapor. Evaporation happens on a global scale.
What is evaporation give examples?
Evaporation is defined as the process of a liquid changing into a gas. An example of evaporation is
water turning into steam
. … Evaporation takes place at the surface of a liquid, where molecules with the highest kinetic energy are able to escape.
What is evaporation with diagram?
Evaporation, the process by which an element or compound transitions from its liquid state to its gaseous state below the temperature at which it boils; in particular, the process by which liquid water enters the atmosphere as water vapour.
