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Evaporation and Condensation

Evaporation is an endothermic process that is the conversion of a liquid to the vapor state by the addition of latent heat. Condensation is a type of chemical reaction in which water or another simple substance is released by the combination of two or more molecules. The term is also used to describe the process by which a gas or vapor changes to a liquid. In weather, evaporation occurs when water on the earth changes to water vapor and enters the atmosphere. The opposite of evaporation, condensation transforms water vapor in the atmosphere into a liquid, often resulting in precipitation, most commonly in the form of rain or snow.

2,794 Questions

How is transpiration and evaporation different?

Transpiration is the process by which moisture is released by plants through their leaves, while evaporation is the process by which water is converted from liquid to vapor from sources such as bodies of water or wet surfaces. Both processes contribute to the water cycle by adding moisture to the atmosphere, but transpiration is specific to plants while evaporation can occur from any surface holding water.

What describes the condensation of water vapor?

Condensation of water vapors is the transformation (change of phase) from water as a gas to water as a liquid.

What happens to the size of puddles when evaporation happens?

When evaporation occurs, the water molecules in the puddle transform into water vapor and rise into the air, causing the puddle to gradually decrease in size until it eventually dries up completely.

Explain why condensation occurs primarily when the air is cooled.?

Condensation occurs when warm air cools down, causing the air to reach its dew point temperature. As the air cools, it loses its capacity to hold water vapor, leading to the excess water vapor turning into liquid droplets that we see as condensation. This process is most commonly observed when the air is cooled, such as when warm, moist air comes into contact with a cold surface.

Sublimation in the water cycle?

Direct transformation of ice in vapours is an example of sublimation.

How are deposition and sublimation different from evaporation condensation solidification and melting?

Deposition is the direct transition of a substance from gas to solid without passing through the liquid phase, whereas sublimation is the direct transition from solid to gas without going through the liquid phase. Evaporation is the process by which a liquid turns into a gas at its surface, while condensation is the process by which a gas turns into a liquid. Solidification is the transformation of a liquid to a solid, and melting is the transformation of a solid to a liquid.

What are the harmful effects in evaporation?

Evaporation during summers leads to drought. During the process of evaporation soil salts move upward making the soil more saline and alkaline, which affect the plant growth. Evaporation of water from plant's leaf (transpiration) leads to wilting if the water lost by evaporation is not compensated by the process of absorption of water by the roots.

How do the evaporation sweat cool the body surface?

When sweat evaporates from the skin, it absorbs heat energy from the body, which cools the skin surface. This process helps regulate body temperature by dissipating excess heat.

What are the different ways of evaporation?

Evaporation can occur through processes such as solar evaporation (heat from the sun), wind-induced evaporation (wind increases air movement over a surface), and boiling (rapid evaporation due to high temperatures). Additionally, plants also undergo transpiration, where water evaporates from their leaves into the atmosphere.

What is thermal energy in condensation?

Thermal energy in condensation refers to the heat energy released when water vapor changes into liquid water. As water vapor cools down, it releases thermal energy, resulting in the condensation of water droplets. This process is important in the formation of clouds and precipitation.

Why does Hotter temperatures evaporate liquids faster?

eg. Wet clothes on a washing line dry faster on a hot day that on a cold day.

On a hot day the clothes will dry faster the warmer it is. The water in the wet clothes evaporate quicker. Heat helps the process of evaporation because heat spreads out particles

What change from the gas state to liquid state is called?

The transition from the gas phase to the liquid phase is called "condensation."

How does evaporation cool down a fire?

Evaporation cools down a fire by using heat energy to turn water into vapor, which absorbs heat in the process. As the water evaporates, it takes away heat from the surrounding area, including the fire, reducing its temperature and slowing down the rate of combustion.

Do particles lose or gain thermal energy during condensation?

Particles release thermal energy during condensation as they transform from a gaseous state to a liquid state. This release of energy helps the particles to slow down and come closer together, forming a more ordered arrangement in the liquid phase.

How are evaporation and transpiration related?

Evaporation and transpiration are both processes by which water is lost from a surface as a vapor. Evaporation occurs from non-living surfaces like water bodies and wet soil, while transpiration specifically refers to water loss from plant leaves through small openings called stomata. Both processes are important for the water cycle and play a role in regulating temperature and humidity in the environment.

How does color impact our environment?

Color can impact our environment in various ways, such as affecting our mood, perception of space, and even behavior. For example, warm colors like red and orange can evoke feelings of energy and warmth, while cool colors like blue and green can create a sense of calm and serenity. The choice of color in our surroundings can influence productivity, creativity, and overall well-being.

Does the evaporation of liquid occurs at all temperature?

Yes, evaporation of liquid can occur at any temperature, but it increases as temperature rises. Evaporation is the process where molecules at the surface of a liquid gain enough energy to escape into the gas phase. This can happen at both room temperature and higher temperatures.

How dense does a cloud need to be in order to rain?

Clouds need to reach a level of saturation where water droplets coalesce and become heavy enough to fall as rain. This typically requires a high enough concentration of water droplets in the cloud to overcome updraft forces keeping them aloft. The specific density of the cloud needed to produce rain can vary depending on factors such as the cloud's height, temperature, and atmospheric conditions.

Which would evaporate quicker Water on a flat tray or water in an open bottle. with particle theory?

Water on a flat tray would evaporate quicker because there is a larger surface area exposed to the air, allowing more water molecules to escape into the air. In the open bottle, the surface area of water exposed to the air is smaller, so the rate of evaporation would be slower.

Why is condensation heat loss?

Condensation leads to heat loss because the process of converting water vapor into liquid releases latent heat. As the water vapor cools down and condenses into liquid form, this released latent heat is transferred to the surroundings, resulting in a loss of heat from the system.

Can liquids other than water evaporate?

Evaporation is the change of state from a liquid to a gas. At a certain temperature all compounds and substances will evaporate. SOLID to LIQUID then to GAS.

What is nitrogen condensation?

Nitrogen condensation refers to the process where gaseous nitrogen is cooled and converted into liquid nitrogen at a temperature of -196 degrees Celsius. This liquid form of nitrogen is often used in various industries for cryogenic applications, such as in medical, food, and semiconductor industries.

What type of enzyme would catalyses a condensation reaction of two amino acids?

A peptidyl transferase enzyme would catalyze the condensation reaction of two amino acids to form a peptide bond. This enzymatic reaction is essential for protein synthesis in living organisms.