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## Why does solid maintain its shape?

A solid is in a state of matter that maintains a fixed volume and shape. A solid’s particles fit closely together. The forces between the particles are so strong that the particles can not move freely; they can only vibrate. This causes a solid to be a stable, non-compressible shape with definite volume.

## Do solids take the shape of their container?

A solid will retain its shape; the particles are not free to move around. It will take the shape of its container. Particles can move about within a liquid, but they are packed densely enough that volume is maintained.

liquid

gas

## Why liquid has no definite shape?

In a liquid, the particles are still in close contact, so liquids have a definite volume. However, because the particles can move about each other rather freely, a liquid has no definite shape and takes a shape dictated by its container.

## Do liquids have definite shape?

Liquids have the following characteristics: no definite shape (takes the shape of its container) has definite volume. particles are free to move over each other, but are still attracted to each other.

## What is the process called when a solid turns into a liquid?

The process of a solid becoming a liquid is called melting. For any pure substance, the temperature at which melting occurs—known as the melting point—is a characteristic of that substance. It requires energy for a solid to melt into a liquid.

## How can we show that liquid do not have fixed shape?

Liquids do not have a fixed shape but a fixed volume because of the fact that the inter molecular force which the molecules exert on each other is not that strong and so a liquid takes the shape of the container it is poured in. The free movement of molecules between the particle spaces is a main feature of liquids.

## Can liquids change shape?

Liquids can flow or be poured easily. They are not easy to hold. Liquids change their shape depending on the container they are in. Even when liquids change their shape, they always take up the same amount of space.

## Does diffusion happen faster in a liquid or a gas?

Diffusion in liquids is slower than diffusion in gases because the particles in a liquid move more slowly. It happens faster if the temperature is increased.

## Why diffusion is faster in gases than liquids?

The molecules of gas have more kinetic energy than liquid molecules and are smaller. The distance between the constituent particles in gases becomes greater than in liquids, resulting in diffusion faster in gases than in liquids. Therefore, gas particles have higher kinetic energy and travel more rapidly.

## Why does diffusion occur in gases?

Gaseous particles tend to undergo diffusion because they have kinetic energy. Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy. Effusion refers to the movement of gas particles through a small hole.

## What is the diffusion of gases?

Gaseous atoms and molecules move freely and randomly through space. Diffusion is the process whereby gaseous atoms and molecules are transferred from regions of relatively high concentration to regions of relatively low concentration.

Graham

## Under what conditions of temperature and pressure a real gas behaves like an ideal gas?

Generally, a gas behaves more like an ideal gas at higher temperature and lower pressure, as the potential energy due to intermolecular forces becomes less significant compared with the particles’ kinetic energy, and the size of the molecules becomes less significant compared to the empty space between them.

## What is the Graham’s law of diffusion?

Graham’s law is an empirical relationship that states that the ratio of the rates of diffusion or effusion of two gases is the square root of the inverse ratio of their molar masses.

2021-06-17

## Why does solid maintain its shape?

A solid is in a state of matter that maintains a fixed volume and shape. A solid’s particles fit closely together. The forces between the particles are so strong that the particles can not move freely; they can only vibrate. This causes a solid to be a stable, non-compressible shape with definite volume.

## Does a solid hold its shape?

A solid is something that can hold its own shape and is hard to squash. The particles in most solids are closely packed together and do not move around.

## Why does a solid have a fixed shape and fixed volume?

(a) Solids have definite shape and definite volume because the molecules in solid are closely packed and in fixed positions. The molecules can vibrate but do not move around which keeps the shape and volume definite.

## What shape does a solid take?

Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.

## What has a definite size but no shape?

A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape.

## What are 3 examples of a solid?

Examples of solids are common table salt, table sugar, water ice, frozen carbon dioxide (dry ice), glass, rock, most metals, and wood. When a solid is heated, the atoms or molecules gain kinetic energy .

## Why is snow solid?

Snow is water frozen hard. Like many liquids, freezing causes crystallization. You may especially be familiar with materials that are liquid at high temperature, but solid at low temperature like salt, Which has cubic crystals. Water, when it turns to snow, forms hexagonal crystals.

## Why you should not eat snow?

Snow is still great, just refrain from eating it! The study revealed that from just one hour of exposure, the levels of pollutants within the snow increased dramatically, with toxic particles becoming trapped within the small ice particles or dissolved within the pockets of melted snow.

## Why shouldnt you eat before bed?

Eating before bed can cause the body’s metabolism to slow. The body slows down its functions at night to prepare for sleep, but consuming foods, especially those high in carbs, can make it harder to digest and result in weight gain.

## Why snow is white?

There’s a scientific reason that snow is white Light is scattered and bounces off the ice crystals in the snow. The reflected light includes all the colors, which, together, look white. And all the colors of light add up to white.

## Why is black black?

In the visible spectrum, black is the absorption of all colors. A black pigment can, however, result from a combination of several pigments that collectively absorb all colors. If appropriate proportions of three primary pigments are mixed, the result reflects so little light as to be called “black”.

## What is red snow?

Red snow, snow or ice surfaces, usually overlying soil on mountains, that are coloured by algae such as Chlamydomonas or Raphidonema. During seasons when there is little sunlight and temperatures are below the freezing point, the algae are dormant. red snow. Red snow caused by Chlamydomonas nivalis.

## Is Red Snow real?

Watermelon snow, also called snow algae, pink snow, red snow, or blood snow, is a phenomenon caused by Chlamydomonas nivalis, a species of green algae containing a secondary red carotenoid pigment (astaxanthin) in addition to chlorophyll.

## Where is Red Snow?

“Red snow” or “watermelon” is a phenomenon that has been known since ancient times. Now, it raises concerns about climate change. Over the last few weeks, photographs of “red snow” around Ukraine’s Vernadsky Research Base, off the coast of Antarctica’s northernmost peninsula, have gone viral.

## Is pink snow dangerous?

The nickname “watermelon snow” comes not only from the pink color, but it is said to smell slightly sweet, a bit like watermelon. Walking on this pink snow can stain your boots. However, it is possible that snow algae might be contaminated by bacteria and toxic algae that are harmful to humans.

## Is pink snow safe to eat?

Unfortunately, it is so widely ac- cepted as fact that ingestion of red snow causes diarrhea that a respected guidebook states, “One should not eat pink snow, since it is a pronounced laxative” [4].

## Where does Pink snow fall?

Snowbanks of colorful pink snow are a common sight during summer on alpine slopes of California’s Sierra Nevada. Photo taken at Gaylor Lakes, Tuolumne Meadows, Yosemite National Park at about 11,000 feet elevation.

## Is pink snow falling in Europe?

Pink snow has appeared at the Presena glacier in northern Italy, researcher Biagio Di Mauro, of the Institute of Polar Sciences at Italy’s National Research Council, told CNN Monday. While “watermelon snow,” as it is sometimes known, is fairly common in the Alps in spring and summer, it has been more marked this year.

2019-06-09