Tuesday, August 9, 2022

# What Is Compressibility In Chemistry Class 9

## Compressibility For A 2dfs

Diffusion Compressibility | Matters in Our Surroundings | Chemistry | Class 9th

Compressibility of a 2DFS is specifically interesting as it is a measurable quantity through experimental procedures. It is essential to derive the compressibility equation for a 2D system. Equation provides a dimensional-independent definition for compressibility, and the respective GSE equation from Table 14.1 can be utilized to find the compressibility and the chemical potential for a d-dimensional system:

, then follows from Eq. :

Karel Heremans, in, 2005

## Can Oxygen Be Compressed Into A Liquid

Oxygen. Its essential for life on this planet, but can it be compressed into a liquid? The short answer is yes. But thats not the whole story.

It all has to do with the different phases of matter. At any given temperature, substances are either solid, liquid or gas. At room temperature, oxygen is a gas, while water is a liquid and ice is a solid. So, oxygen can be compressed into a liquid at room temperature by simply applying pressurebut its not so simple as that.

At normal atmospheric pressure , oxygen would have to be cooled to minus 297 degrees Fahrenheit before it could become a liquid under normal circumstances. Thats extremely cold!

But when you put pressure on oxygen, youre changing its phase boundarythat line between solid, liquid and gas. When you push down on something hard enough, it changes from one phase to another phase that can withstand the force youre putting on it more efficiently. This is why ice skates dont sink into the ice when you skate: the force of your body weight changes the phase of the ice directly beneath them and allows your skates to glide smoothly over the surface of the ice (which remains frozen

## Chemistry Class 9th Ch6 Lec: Compressibilitymobility And Density Of Gases By Sabaq Foundation

This video lecture from Chemistry Class 9Th covers topic of Compressibility,Mobility and Density of Gases . In this Video Lecture Instructor has explained in details about Compressibility,Mobility and Density of Gases . The concept of Compressibility,Mobility and Density of Gases has been illustrated with more than one examples. Instructor have tried to cover all aspects about Compressibility,Mobility and Density of Gases . Instructor has focused on conceptional learning but at the same time teaching is geared towards exam preparation too. Compressibility,Mobility and Density of Gases is explained in Urdu language for better comprehension , Most of the text and technical terms are in English, however, the explanation of the topic is in Urdu. This Video Lecture is a supplementary resource for better understanding of Compressibility,Mobility and Density of Gases .

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## Relation To Bulk Modulus

The inverse of the compressibility is called the bulk modulus, often denoted K .).The compressibility equation relates the isothermal compressibility to the structure of the liquid.

The isothermal compressibility is generally related to the isentropic compressibility by a few relations:

}}}=}}}=\gamma ,}
=\beta _-T}}},}
1 v , }}=}}+T}}},}

where is the heat capacity ratio, is the volumetric coefficient of thermal expansion, = N/V is the particle density, and

In an extensive thermodynamic system, the application of statistical mechanics shows that the isothermal compressibility is also related to the relative size of fluctuations in particle density:

2 , =}}}=\rangle /V}}T\rho ^}},}

where is the chemical potential.

The term “compressibility” is also used in thermodynamics to describe deviations of the thermodynamic properties of a real gas from those expected from an ideal gas.

The compressibility factor is defined as

Z }}}

where p is the pressure of the gas, T is its temperature, and V m } is its molar volume, all measured independently of one another. In the case of an ideal gas, the compressibility factor Z is equal to unity, and the familiar ideal gas law is recovered:

p }}}

Z can, in general, be either greater or less than unity for a real gas.

## How Is Compressibility Useful To Us

As you know, air is compressible, which means that it can be squeezed into a much smaller volume. Youve probably seen demonstrations of this when you hold a bike pump or an air compressor. A bicycle tire pump has a small cylinder and piston inside that takes up very little space. When you pump on the handle, the piston pushes out on the column of air in front of it, compressing it into a smaller space. This allows you to pump up the tire to a high pressure, which gives it its firmness.

When many people think of compressibility they immediately think of it being used in engines. Compressibility is very important in engines because when something is compressed it creates heat and energy. This can be utilized in the compression stroke of an engine to create a more powerful explosion than what would happen in an engine that has no compression stroke. Compressibility is also used in rocket engines to help propel rockets forward by pumping fuel into small chambers and compressing it to create enough heat and energy for the rocket to fly forward.

The principle of compressibility is also useful for us at home, especially when we want to keep things cold or frozen for long periods of time. Have you ever wondered how people are able to keep their food

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## Why Liquids Are Less Compressible Than Gases

Liquids are typically less compressible than gases because of the tightness of their molecules. Molecules in a liquid are spaced close together and have little movement, while there is more space between molecules in a gas, and they move more freely. For example, hydrogen and helium are both gaseous elements, but hydrogen molecules are more tightly packed than helium molecules, so hydrogen gas is less compressible than helium gas. Water has much denser molecules than hydrogen or helium, so water is much less compressible than either gas. Water also has surface tension, which means its molecules attract each other and create an invisible surface that tends to resist penetration by objects. Surface tension keeps water from being very compressible even at high pressures.

## Matter In Our Surroundings

Which of the following are matter?Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume.

Chair, air, smell, almonds, cold drink and smell of perfume

Give reasons for the following observation:The smell of hot sizzling food reaches you several metres away, but to get smell from cold food, you have to go close.

This happens because rate of diffusion of gas increases with increase in temperature. In case of hot food, diffusion of smell is faster whereas in case of cold food, diffusion is slower.

A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

The particles of water are held together by forces of attraction. It is the reason that the diver is able to cut through water in a swimming pool.

Tabulate the differences in the characteristics of states of matter. Comment upon the following : rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density

What are the characteristics of the particles of matter?

The mass per unit volume of a substance is called density.Arrange the following in order of increasing density air, exhaust from chimneys, honey, water, chalk, cotton and iron.

The increasing order of density isair < exhaust from chimney < cotton < water < honey < chalk < iron.

Liquids generally have lower density as compared to solids. But you must have observed that ice floats on water. Find out why?

B. 100°C ?

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## Th Class Chemistry Notes Chapter 5

Differentiate between diffusion and effusion. Define compressibility of gases. Why gases are compressible? Define standard atmosphere pressure. What are its units? What is meant by mobility of gases? Why gases are mobile? Why does volume of a gas decrease with increase of pressure? When gas is allowed to effect on its temperature 2p and, what will be its Is the Boyle’s Law valid at very high temperature? What will happen if the pressure on a sample of gas is raised three times and its temperature is kept constant? Define evaporation. How it is affected by surface area? Differentiate between evaporation and condensation. Why evaporation causes cooling? Define boiling point. What is the effect of external pressure on boiling point? Define vapour pressure. What is the effect of temperature on vapour pressure? What is the relationship between evaporation and boiling point of a liquid?

## What Is The Use Of Compressibility

States of Matter Class 11 -9 | Compressibility Factor vs Pressure Curve | Van der Waals Gas Equation

A compressible fluid is a fluid whose density changes with pressure. The compressibility of a fluid is an important property, because it affects its flow characteristics, as well as its heat capacity and thermal conductivity.

The compressibility of a gas can be determined by measuring its volume changes at different pressures. This method has been used for centuries to determine the compressibility of gases such as water, air and even mercury. The first person to use this method was Galileo Galilei in 1638. He experimented with air by filling a glass jar with it and then attaching a piston to one end and sealing it off from the outside environment so that no pressure could enter except through the piston itself. He slowly pushed down on the piston, forcing air out of the jar and creating a vacuum inside it. He measured how much additional space was needed to fill up this vacuum by taking measurements before he started pushing down on the piston and after he stopped pushing down on the piston again when there were no more bubbles left in his jar.

Compressibility is defined as how much volume an object takes up under pressure or how much space it occupies when compressed . For example: if an object takes up less space under pressure

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## What Is Compressibility In Chemistry Class 9

Have you ever wondered what is compressibility in chemistry class 9? Or maybe you have no idea what the term compressibility even means. Well, youre in luck because Im going to share with you some basic information on the subject.

Compressibility refers to the amount of volume that a material can reduce by applying pressure. For instance, water is easily compressed because it has a relatively high viscosity . This means that when a force is applied to it, such as the force of gravity, it will tend to expand. When this happens, there are two possible outcomes: either the material will expand and reach its maximum capacity , or it will contract and reach its minimum capacity . If this happens at a temperature below freezing, then ice will form and remain solidified until it melts again at room temperature which explains why we have ice cubes instead of snowballs!

The opposite of compressibility is elasticity which describes how easily something can be stretched, bent or twisted without breaking. For example, when a rubber band snaps back into shape after being pulled apart by hand it has elasticity however if that same band was stretched out beyond its breaking point (which would

## Explain Why Gases Are Easily Compressible Class 9

i am giving as much i know many answer please mark me brainliest please

Explanation:

There is no space between the individual particles, so they cannot pack together. The kinetic-molecular theory explains why gases are more compressible than either liquids or solids. Gases are compressible because most of the volume of a gas is composed of the large amounts of empty space between the gas particles.

Gases are highly compressible because their molecules are far apart from each other. There are a lot of empty spaces between the molecules. They can be easily compressed to a point where the intermolecular distance becomes minimum. this compressibility is lesser for liquids and least for solids.

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## Why Liquids And Gases Can Flow

Why Liquids And Gases Can Flow?

Gases and liquids can flow because they have weak intermolecular bonds between them. There are three states of matter, namely: solid, liquid and gas. Solids are so tightly packed that they dont move when we apply some force on it. Liquids and gases have weaker intermolecular forces than solids, which allows them to flow.

## Green Density And Compressibility

The compressibility of metal powder determines the green density that can be achieved at a given compaction pressure. Compressibility is dependent on particle shape, particle density, particle hardness, chemical composition, and, to a degree, particle size. A smooth surfaced powder results in higher compressibility as the pores created during the compaction are essentially between particles. An irregularly shaped particle can fold on itself creating porosity that cannot be removed by further compaction, resulting in lower green density. Particle density is higher for atomized powder when compared to a chemically reduced powder, as the latter tends to be spongy. More internal porosity is present in a sponge iron particle than in atomized iron powder and this porosity cannot be entirely removed during compaction. Hence, the density of compacted sponge particles will be lower than less porous atomized particles.

Jinlian HU, in, 2008

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## What Is The Cost Of Liquid Oxygen

The cost of liquid oxygen varies, but it can be quite expensive if you are not careful. The price can vary depending on where the product is purchased and how much is needed.

Liquid oxygen is used to help people breathe when they have trouble breathing normally. It can also be used as a medical treatment for certain conditions. The cost of liquid oxygen will depend on where you purchase it, as well as what type of product you buy.

The cost of liquid oxygen varies between $2 and$15 per liter, depending on the size of the container being purchased and whether or not it is a small or large bottle. For example, an average 15-liter bottle would cost about $25 at a local pharmacy or medical supply store when purchased in bulk quantities . If only one bottle was purchased at a time, however, this could increase significantly to anywhere from$40 to \$60 per bottle depending on the supplier and type of product being sold .

Another factor that affects how much liquid oxygen costs is how much gas is contained in each container. For example, a 20-liter tank with 10 liters of gas in it may cost less than two 10-liter tanks with five liters each because it

## What Is Compressibility

Compressibility is the property of being reduced to a smaller space by pressure. This property is a consequence of porosity, and the change of bulk comes from the particles being brought closer together by the pressure.

The compressibility of fluid is basically a measure of the change in density that will be produced in the fluid by a specified change in pressure. Gases are, in general, highly compressible whereas most liquids have very low compressibility.

The fact that compressibility effects can have a large influence on fluid flow. The study of these flows in which the changes in density and temperature are important is basically what is known as compressible fluid flow or gas dynamics.