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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.

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What cause Robinson Crusoe to change?

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Robinson Crusoe changes as a result of his experiences on the deserted island. He learns self-reliance, gains a deeper understanding of the value of companionship, and becomes more appreciative of the simple things in life. These experiences lead to his personal growth and transformation.

In separating component of mixture When are filtration and evaporation going to be used?

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Filtration ; to separate undissolved solids. e.g. sand from sea=water.

Evaporation ; to drive off the solvent(water), to leave the formerly dissolved crystalline solids behind.

What are the forms of gases?

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Oxygen, Helium, Natural Gas, Carbon Dioxide, Anaesthetics Gas, Carbon monoxide, sulfur dioxide, Neon, water vapor.

Where else do you see condensation?

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you can find condensation on a mirror after shower also clouds are condensation

What are the similarities and differences between evaporation and distillation?

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They are both methods which use heat to separate mixtures.

Evaporation occurs at boilig point or before boiling point?

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Water - or other liquids - will evaporate at practically any temperature. Boiling is defined as the temperature at which the partial vapor pressure is equal to the atmospheric pressure. In practical terms, it means that the boiling water (or other liquid) can't get any hotter assuming the pressure doesn't change. You'll also see lots of bubbles rising from the boiling liquid (but before it is boiling, there will also be a few bubbles).

Examples of condensation around house for children?

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foggy windows in a car, foggy mirror in a bathroom, dew forming on grass/leaves in early mornings

How long before you get condensation equals liquid?

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When the humidity [amount of water vapor in the air] and the temperature are in the right combination, condensation occurs immediately. Condensation can occur at many different temperatures when the humidity is optimal.

Why does the presence of wind speed up the rate of evaporation?

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At a higher temperature, the velocity of the individual molecules increase, and the total kinetic energy of the system increases. Therefore, the molecules can overcome their intermolecular forces and change to a higher energy state (a gas). Thus, the rate of evaporation increases as temperature increase.

What type of instrument used to measure evaporation?

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Lysimetre is used. U can also mail me for details at ce_11_23@yahoo.com

Why does evaporation cool things?

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Water and other liquids absorb heat energy from their surroundings when they evaporate. Since the high-energy molecules leave the liquid's surface, the remaining liquid molecules have less average energy , That makes evaporation a cooling process.

How condensation evaporation precipitation take place?

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The flooding takes place because in some areas there are no gutter lines and there is a lot of blockage

How do you quicken evaporation?

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Evaporation is a function a substance's vapor pressure. There are two ways to increase the rate of evaporation. If you raise the temperature for most substances it evaporates more quickly. If you give it a larger surface area it will also evaporate more quickly.

At higher temperatures air can hold water vapor as compared at a lower temperatures?

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Plants take in sunlight and Carbon Dioxide, and as a by product, produce water and oxygen. when it is humid the air is wet and damp like bathing with hot water. so the plant takes in the water to make photosynthesis.

Where does evaporation mostly take place?

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it occurs in warm ocean areas near the equator

What is the evaporation rate in southern California?

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It would depend on where you where located. Beach is dramatically different than Desert.

Los Angeles Area "Low" Monthly ET is .97 in Jan, "High" Monthly ET 6.13 in July.

Divide by 4 to attain weely rates

What are the effects of evaporation?

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When a person puts on lotion, it evaporates into the skin after a few seconds. This helps keep the skin moisturized and healthier.

How evaporation causses a Cooling effect?

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Energy must be put into whatever is being evaporated (to turn int from liquid to gas).

An example is when one sweats, the body cools as the sweat evaporates, because the energy for the sweat (water) to evaporate is taken from the body/skin.

What is the of evaporation dish?

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an open generally shallow concave container for holding liquids for evaporation.

How is evaporation and sublimation related?

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Evaporation is when a substance changes from a liquid to a gas, from heat.

Sublimation is when something is cold enough that it turns into a gas, straight from a solid.

like when it's freezing cold outside, and ice is still getting smaller, and there is no puddle around it, it is because it is sublimating.

Sublimation can be used to extract chemicals, that are heat sensitive. Replacing the evaporation method.