What best describes the evaporation of water?
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 of the following best describes the evaporation of a liquid?
Answer: B – Water molecules on the surface overcome intermolecular forces and change into the gas phase.
Which answer best defines evaporation?
Evaporation is defined as the process of a liquid changing into a gas.
What is the description of evaporation?
evaporation, 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 in the water cycle.
What causes water to evaporate?
Heat energy causes evaporation by breaking the molecular bonds that keep water molecules in the liquid state. Although it varies by location, the amount of rain that falls is about equal to the amount of water that evaporates on the planet. More evaporation occurs over the ocean than over land.
What type of process is evaporation?
Evaporation is an endothermic process, in that heat is absorbed during evaporation.
What occurs during the evaporation of water quizlet?
Evaporation is the process of water turning into a gas. That gas is called water vapor. It turns to water vapor by the sun heating down on the water. The water starts to heat up and eventually evaporates.
Where does water go when it evaporates?
Some of it evaporates, returning to the atmosphere; some seeps into the ground as soil moisture or groundwater; and some runs off into rivers and streams. Almost all of the water eventually flows into the oceans or other bodies of water, where the cycle continues.
How will you describe the movement of water was boiling?
When water is boiled, the heat energy is transferred to the molecules of water, which begin to move more quickly. Eventually, the molecules have too much energy to stay connected as a liquid. When this occurs, they form gaseous molecules of water vapor, which float to the surface as bubbles and travel into the air.
How does water evaporate without boiling?
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.
How does water evaporate in the cold?
On cold days, water evaporates, but it evaporates more slowly than it would on a warmer day. Although water can evaporate at low temperatures, the rate of evaporation increases as the temperature increases.
Which of the following is true about evaporation?
The correct answer is It increases with increase in surface area. Evaporation is the process by which a liquid turns into a gas. Evaporation is an essential part of the water cycle. In the Water cycle, water moves from the liquid state back into the water cycle as atmospheric water vapour.
Why does water evaporate slowly?
Water (H2O) molecules are strongly bound together. These “hydrogen bonds” between the atoms of neighboring water molecules make it hard for individual molecules to break free from the bunch. So even when water has a lower molecular weight than another liquid, it may evaporate more slowly.
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 factors can 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.
How does evaporation affect temperature?
Evaporation causes cooling because the process requires heat energy. The energy is taken away by the molecules when they convert from liquid into gas, and this causes cooling on the original surface.
When water is evaporated from the ocean surface?
Oceanic evaporation occurs when water molecules change phase from liquid to vapor at the air–sea interface. The rate at which this process occurs depends essentially on three variables: the available heat energy, the difference in humidity between the air and the surface, and the wind speed.
What is water evaporation rate?
Evaporation rates, which are provided by meteorological stations, are found by measuring and recording water losses by evaporation over many years. Evaporation rates are usually expressed as the water depth lost in millimetres over a period of time, e.g., 2 mm/day, 14 mm/week or 60 mm/month.
How fast can water evaporate?
The water takes 1.2 hours to fully evaporate.
1 hour for evaporation seems pretty fast, but I did use a large convection coefficient from the beginning.
Is evaporation a physical change?
Melting, evaporation and condensation are examples of physical change, or change of state, and are distinct from changes that cause new materials to form through a chemical reaction.
Is evaporating a chemical?
The evaporation of water is a physical change. When water evaporates, it changes from the liquid state to the gas state, but it is still water; it has not changed into any other substance. All changes of state are physical changes.
Is evaporation a chemical or physical change briefly explain your answer?
Evaporation is a physical change because it involves a change of physical state. There is no change in the chemical makeup of the substance, which would be necessary for a chemical change.