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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 is the formation of a larger droplet by the combination of smaller droplets?
The coalescence process involves the combination of smaller droplets into a larger droplet. This can occur when smaller droplets collide and merge due to surface tension forces. Coalescence is important in cloud physics and industrial processes where droplet size plays a critical role.
What are the two most important trace gases in the atmosphere?
The two most important trace gases in the atmosphere are carbon dioxide (CO2) and methane (CH4). These gases contribute significantly to the greenhouse effect and have a major impact on global warming and climate change.
Most things are made in countries with large manufacturing industries, such as China, the United States, and Germany. These countries have the resources, infrastructure, and skilled labor force necessary for mass production.
What name is given to the temperature that vapour starts to condense?
The temperature at which vapor starts to condense is called the dew point temperature. This is the temperature at which the air becomes saturated with water vapor and condensation begins to form.
When the temperature of a cloud is below -18 degrees C, the cloud consists almost entirely of ice crystals. These ice crystals can grow and combine to form larger ice particles, leading to precipitation such as snow or hail.
What is the source of energy for light waves?
The source of the light is the source of the energy carried by the light.
The heat of a fire, the chemical energy in the tail of a firefly, the kinetic
energy of the flint scraping across the stone, the heat of the filament
in the light bulb, the electricity that powers the LED or the laser, etc.
The force that generates wind is?
The force that generates wind is primarily the result of pressure differences in the Earth's atmosphere. When air moves from areas of high pressure to low pressure, wind is created. Other factors such as the Earth's rotation and surface features can also influence wind patterns.
Explain why the temperature of Wax remains constant during solidification?
it's because it releases the latent heat of fusion.
Latent heat means energy is given out when a substance changes from liquid to solid without a change in temperature.
and the transfer of energy doesnt change the KE of the particles, so the temperature remains unchanged. lanten heat gives rise to the change in PE of the particles during the change of state only
Water vapor is essential for various natural processes, such as the water cycle, which includes processes like evaporation, condensation, and precipitation. Water vapor also plays a crucial role in regulating Earth's temperature by trapping heat in the atmosphere. Additionally, water vapor is important for providing moisture for cloud formation and for nurturing plant growth through precipitation.
What causes eyeglasses to fog?
Eyeglasses fog when warm air hits the cold surface of the lenses, causing condensation. This commonly occurs when moving between different temperatures, such as from outdoors to indoors or from a heated area to a cold one. Wearing a mask that directs exhaled air upwards can also contribute to fogging.
The principal source of evaporated water that becomes precipitation is?
The principal source of evaporated water in our atmosphere is also the largest source of water on our planet. It is the water evaporating from our oceans. Water also evaporates from lakes, rivers, streams or any other place where water can be found.
When water vapor condenses into liquid water droplets in a cloud during a thunderstorm, it releases energy in the form of latent heat. This process of condensation is exothermic, meaning it releases heat into the surrounding environment.
Why does the hydrogen bomb make a mushroom cloud?
Every explosion happening in an atmosphere makes a mushroom cloud; whether the explosion is a tiny firecracker, a hand grenade, a conventional bomb (e.g. the three explosions shown in the photo above), an atomic bomb, a hydrogen bomb, an explosive volcanic eruption, a meteor exploding in midair due to thermal stresses (e.g. comet Shoemaker-Levy 9 at Jupiter), a meteor impact making a crater, etc. How visible the mushroom cloud is and how long it persists depends on the yield of the explosion (how big it was in terms of energy released). The mushroom shape is simply an effect of buoyancy: hot gasses produced by the explosion are less dense than the surrounding air so they rise with the cap of the mushroom being a toroidal vortex (similar to a smoke ring).
Similar clouds can be observed in the smoke above large fires and water vapor above cooling towers, but usually missing a well defined cap.
Underground salt domes (that contain petroleum and natural gas) result from the same density phenomenon, with less dense salt rising through more dense rock. However here in most cases only the cap remains without the stem.
Temperature when water changes from a gas to a liquid?
Water can evaporate even at relatively low temperatures, the water only needs to be slightly warmer than it's surroundings to evaporate, so there is no fixed temperature at which water vapour condenses to become water again.
Although the above statement is true, water turns to a gas at boiling point of course, yet people tend to forget that when a substance is directly at boiling point (100 degrees Celsius for water) it can either turn into a gas or go from gas back to liquid. just under BP water gas turns completely to liquid while after BP the water liquid becomes a gas.
Winds are primarily generated by the uneven heating of the Earth's surface by the sun. This differential heating causes air to move from high pressure to low pressure areas, creating winds. Other factors such as the Earth's rotation (Coriolis effect) and topography can also influence wind patterns.
What is the process of cooling down of water vapour called?
The process of cooling down water vapor to form liquid water is called condensation. This occurs when the temperature of the water vapor drops below its dew point, causing it to change phase from gas to liquid.
Air is a mixture of gases, not a vapor. Vapor refers to the gaseous state of a substance that is typically a liquid or solid at room temperature. However, water vapor is a component of air, along with nitrogen, oxygen, and other gases.
How do you make fog in a bottle?
Make fog in a bottle with hot water
- In this case the condensation is caused by the temperature variation between simple ice and hot water. 1. Fill up the jar or bottle completely with very hot water and let it stay there for about 60 seconds. 2. Pour out all but about an inch of the hot water. 3. Put a strainer or bag over the top of the jar. 4. Place ice cubes in the strainer or plastic bag. 5. Fog will form as the hot water vapor from the bottom of the bottle contacts the cold air created by the ice cubes and begins condensation.
and there ya go. hehe
What weather do cumulonimbus clouds bring?
thunderstorms and other intense weather. Cumulus humilis clouds, appearing as small or medium-sized puffy shapes in the sky, often occur in times of fair weather.
However, cumulus clouds can grow into cumulonimbus clouds which may produce heavy rain, lightning, severe and strong winds, hail, and even tornadoes. Cumulus congestus clouds, which appear as relatively thin towers, will often grow into cumulonimbus storm clouds.
Hope this helps
What is the two processes which a liquid can change into gas?
Boiling and evaporization. Boiling is mainly used with water, but if you notice, hand sanitizer does not boil when you rub it in, it just evaporates, the friction from your hands is the heat..
What is denser cold or warm air?
Colder air is more dense than warmer air. That is why
nobody every flies in a cold-air balloon.
What causes most clouds to form?
Most clouds form when warm, moist air rises and cools, causing the water vapor in the air to condense into tiny droplets around particles like dust or salt in the atmosphere. This process creates visible clouds in the sky.
Is energy gained during sublimation?
Yes, energy is gained during sublimation because it is an endothermic process where energy is absorbed to break the intermolecular forces holding the solid together. This energy is used to overcome the forces between the molecules and allow the solid to change directly into a gas without passing through the liquid state.
Is hot air denser then cold air?
No, hot air is less dense than cold air. When air is heated, its molecules gain energy and move faster, causing them to spread out and decrease in density. Cold air, on the other hand, has slower-moving molecules that are packed closer together, making it denser.
Why is the formation of clouds a physical change?
Clouds are formed by water vapors condensations.
And the processes implied in the formation of clouds (evaporation, condensation, freezing) are all change of matter - physical changes. A chemical process need a change in the nature of the chemical reactants - but in this case the chemical formula of water (H2O) remain the same.
