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Clouds

A cloud is a visible body of very fine water droplets or ice particles suspended in the atmosphere at altitudes up to several miles above sea level. They are generally produced by the condensation of water vapor. Other clouds, less commonly seen, are composed of smokes or dusts.

10,186 Questions

What kind of change happened to water to water vapor?

The change that occurs when water turns into water vapor is called evaporation. This process happens when water is heated, either by the sun or another heat source, causing the water molecules to gain enough energy to escape into the air as a gas.

What is the process of water purification used in the manufacture of cosmetics where water is heated to a vapor then collected as a liquid?

The process you are referring to is called distillation. In cosmetic manufacturing, water is heated to create steam, which is then cooled and condensed back into liquid form. This helps remove impurities and contaminants from the water, resulting in purified water that is safe to use in cosmetic products.

Evaporation is what kind of process?

Evaporation is a physical process by which a liquid substance transforms into a gaseous state at a temperature below its boiling point. During evaporation, individual molecules gain enough kinetic energy to escape the liquid surface and enter the gas phase.

What is ALWAYS true about the temperature of a substance during a phase change?

During a phase change, the temperature of a substance remains constant despite the addition or removal of heat. This is due to the energy being used to break or form intermolecular bonds rather than increase the kinetic energy of the particles.

What does condensed mean in science?

In science, "condensed" typically refers to a state of matter where particles are closely packed together, such as in a solid or liquid form. It implies a high density of particles within a given volume.

What compounds are sprayed over clouds to cause artificial rain?

Compounds such as silver iodide, potassium iodide, and sodium chloride are often used to seed clouds in cloud seeding to induce artificial rain. These compounds help to promote the formation of ice crystals within clouds, which can then grow into raindrops and trigger precipitation.

What cause liquid water to turn into water vapor?

evaporation




Heat. Or rather, thermal energy, as it causes the H2O molecules and their atoms to move more rapidly and separate from each other. The hotter they get, the more they expand (move farther apart) until they become a gas, in this case, steam.

Who discovered electricity in clouds?

Benjamin Franklin is credited with discovering electricity in clouds through his famous kite experiment in 1752. By flying a kite with a metal key attached to it during a thunderstorm, he was able to demonstrate that lightning was a form of electricity and that it could be harnessed.

Give two examples on how area affects the pressure?

area affects pressure ,for example like when you walk on sand while wearing heels or flat shoes ,the area of heel is smaller so larger is the pressure whereas area of flat shoes is larger so smaller the pressure.

Why density of sound is more in moist air than in dry air?

I think you may have mixed your answer up with your question.

Sound doesn't have a density, but air density affects the speed of sound.

Moist air has a higher mass/density than dry air.

Speed of sound is higher due to denser air.

Can water purify through the water cycle?

By recycling.

Well, to be exact,water actually is simply evaporated that way. We all know what the water cycle is, right? Evaporation (water heats and turns from a liquid to a vapor) then, after reaching the clouds, it condenses (the vapor cools and turns back into a liquid) lastly everything Precipitates (returns back down in the form of snow, rain, hail, etc...) so anyways, while evaporating, pollution doesnt go up with it. Only pure water is taken. So it being purified is really only a natural thing.

If you want to prove to yourself that pollution doesn't really go with it, try filling up a cup with water. Then place some food coloring of your choice in it ( this is to represent pollution.) Next, put the cup in a plastic baggy close the bag and lastly place it by a sunny window. After a couple days you will be able to clearly see your own mini water cycle going on. But the point is that once it condenses and cools at the top of your baggy, it will be squeezed into mini water droplets and trickle to the bottom of the baggy. But these water droplets won't have food coloring in them (pollution) they'll look just like the water you had before adding the food coloring! So it clearly shows, during the watercycle, water is pretty much naturally purified.

Why does hot oil splutter when droplets of water is dripped into it?

Because first of all the water is heavier then the oil so the droplets sink into the oil rapidly the next thing that happens is that the water suddenly urns int team and expands ans rapidly pushes the oil that is surrounding it away from itself.

Hot oil will splutter when droplets of water is dripped into it?

This happens because water and oil don't mix, causing the water droplets to sink to the bottom of the pan and then rapidly boil and turn into steam. The sudden expansion of the water into steam creates a forceful expulsion of hot oil, which results in spluttering. This can be dangerous, so it's important to exercise caution when cooking with hot oil.

When is thermal energy trapped in the dense center of a cloud?

Thermal energy is trapped in the dense center of a cloud when the cloud absorbs sunlight and the heating effect is stronger at the center due to compression of air rising. This can lead to the formation of a warm core in the cloud, which can enhance its vertical development and intensify weather phenomena like thunderstorms.

Is vapor the same thing as gas?

Vapor refers to the gaseous state of a substance that is typically a liquid or solid at room temperature, whereas gas refers to any substance that is in its gaseous state. So, while vapor is a gas, not all gases are considered vapor.

What can escape and move outside of the ion's electrons cloud?

Electrons can escape and move outside of an ion's electron cloud. This can happen through processes like ionization, where an electron gains enough energy to break free from its parent atom. Once free, these electrons can move independently in the surrounding environment.

What is the process of water vapor turning back into water?

When water vapor turns back into liquid water, it undergoes a process called condensation. This occurs when the water vapor cools down and loses energy, causing the water molecules to come together and form liquid droplets. Condensation is a crucial part of the water cycle, as it leads to the formation of clouds and precipitation.

Is a bathroom mirror fogging as someone showers a physical or chemical change?

Physical, it is water vapor condensing on the colder glass of the mirror.
Physical

What is the reason behind fog?

Actually, fog is a cloud of condensed water vapour present in the air. In cold days, water vapours become more cool to condensed by extracting its energy to its near by nitrogen vapours present in air (as boiling temperature of nitrogen is very low approx. -200C). Thus the condensed water vapour suspend in the air to make a cloud i.e. fog.

O.P.Yadav

GCET, Gr Noida

How does humidity affect the dielectric breakdown strength of air?

Generally, dielectric breakdown strength decreases with increasing humidity. In air, exact relationships between dielectric strength and humidity are hard to derive, due to the numerous other variables compounding the relationships (e.g. electrode size and shape, air temperature and pressure).

Sources:

http://www.scienceforums.net/topic/37206-dielectric-strength-of-air/

http://en.wikipedia.org/wiki/Dielectric_strength

What is an anvil cloud?

An anvil cloud, also known as a cumulonimbus incus, is a large, flat cloud that often forms at the top of a mature thunderstorm. It is typically formed when the updraft of warm air reaches the tropopause and spreads out horizontally. Anvil clouds can indicate severe weather such as heavy rain, thunder, lightning, and sometimes hail.

Molecules of a liquid to a molecule of water vapor?

During evaporation, molecules of a liquid gain enough kinetic energy to break free from the liquid surface and escape into the gas phase as water vapor. This process involves individual molecules transitioning from the liquid phase to the gas phase without the liquid boiling.

When hot and cold air meet the hot air rises to the top Which process causes the hot air to rise?

The hot air rises due to convection, which is the transfer of heat through the movement of liquids or gases. When hot and cold air meet, the hot air expands and becomes less dense, causing it to rise above the denser, cooler air.

What instruments do you use to measure the ferroelectricity of thin films?

Common instruments used to measure the ferroelectricity of thin films include piezoresponse force microscopy (PFM), atomic force microscopy (AFM), and impedance analyzers. These tools can help evaluate the polarization and hysteresis properties in thin ferroelectric films.

What does droplets that become to heavy to remain suspended in the air fall out of the clouds as?

Droplets that become too heavy to remain suspended in the air fall out of the clouds as precipitation, such as rain, snow, sleet, or hail.