Evaporation is described as the phase in which the water state takes place from the liquid to the gaseous or vapour state. An example of evaporation is the melting of a cube of ice.
Why do you mean by evaporation?
Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. Evaporation is a very important part of the water cycle.
What is evaporation answer in one word?
Answer: Solution: The change of state of a liquid to vapour at all temperatures is called evaporation.
What is evaporation simple?
Evaporation is the process by which a liquid turns into a gas. It is also one of the three main steps in the global water cycle. 5 – 8. Earth Science, Geography, Meteorology.
What is evaporation give example? – Related Questions
What is evaporation question answer?
Evaporation is a process where liquid changes into a gas below the temperature at which it boils. When water gains heat energy it changes to a gas. An increase in temperature speeds up the rate of evaporation. Was this answer helpful?
What is evaporation Class 3 Short answer?
The conversion of water from a liquid to a gas. Solar energy drives evaporation of water from the ocean. The evaporated water changes from a liquid form into water vapor a gaseous form.
What is evaporation answer for Class 4?
Question: What is evaporation? Answer: Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure. It is a fundamental part of the water cycle and is constantly occurring throughout nature.
What is evaporation in science class 6?
The process of conversion of water into vapor is called Evaporation. For example, the separation of salt from water is done by the evaporation of seawater.
What is evaporation for kids?
Evaporation is a process where liquids change to a gas or vapor. Water changes to a vapor or steam from the energy created when molecules bounce into one another because they’re heated up. Sweat drying from our body is a great example of evaporation.
What is a good sentence for evaporation?
Evaporation sentence example. There was evaporation of water from the leaf. The annual evaporation from water surfaces is from 60 to 150 in. The test tube is tightly corked to prevent evaporation, and allowed to stand for some hours.
What is the evaporation process called?
In hydrology, evaporation and transpiration (which involves evaporation within plant stomata) are collectively termed evapotranspiration. Evaporation of water occurs when the surface of the liquid is exposed, allowing molecules to escape and form water vapor; this vapor can then rise up and form clouds.
How do you evaporate water?
TL;DR: When trying to make water evaporate quickly, it is best to spread the water over a large surface area and apply heat as evenly as possible. If using hot air to evaporate water, increased velocity will increase the speed of evaporation.
Can evaporation happen without heat?
The heat in that water results in some molecules moving fast enough to escape into the air, that is, evaporate. No additional source of energy is required for evaporation, and the water does not need to reach the boiling point to evaporate. As we’ve seen, water will evaporate at room temperature.
What increases evaporation?
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 evaporates water quickly?
Hot water evaporates faster than cold water because the molecules of hot water have more energy to escape the surface and turn into a gas molecule. When a water molecule does this, the molecule becomes a molecule of water vapor (or steam).
What is the effect of evaporation?
Evaporation is an endothermic process, it uses surrounding heat and so has a cooling effect. Any surface that has an evaporating liquid on it is cooler than its surroundings. In an air conditioner gases are liquefied so they will evaporate very fast at room temperature, making the place become cooler.
Can fire evaporate water?
Quite a lot of the smoke from a fire is actually steam. All the water in the plant gets evaporated by the heat of the flames, and goes up in the smoke as water vapour.
How long does it take water to evaporate?
According to these web sites, the average time a water molecule spends in the atmosphere is 8-9 days. This is pretty fast! So on average, it takes just 8-9 days for a water molecule to evaporate, enter the atmosphere, and then leave it again as rain.
Is water always evaporating?
Furthermore, water is always evaporating. It is also always condensing. You can picture a cup of liquid sitting in a room. The evaporation rate will be driven by the saturation vapor pressure es calculated with the temperature of the liquid water.
Can water evaporate inside?
Clearly, water does evaporate at 212ºF, but it also evaporates at room temperature. Don’t worry, you don’t have to live in a house that’s a scalding 212ºF just for water to disappear on its own.
At what temperature can water evaporate?
To cause this change, a high temperature is required, called the boiling point. For water, this point is 100oC.