Explore topic-wise InterviewSolutions in .

Kinetic Molecular Theory states that gas particles are in constant motion and exhibit perfectly elastic collisions.

Kinetic Molecular Theory can be used to explain both Charles’ and Boyle’s Laws.

The average kinetic energy of a collection of gas particles is directly proportional to absolute temperature only.

Please hit the like button if this helped you

by using vsepr 1/8[7+7 x 3] = 5 sp^3d

Bond order is the number of bonds between the two atoms which are participating in bond formation.

C2 molecule does not exist in general. Carbon Valence is not satisfied in this molecule.

According to molecular orbital theory it is 2.

An orbital is a mathematicalfunction called awave functionthat describes an electron in an atom. Thewave functions, ψ, of the atomic orbitals can be expressed as the product of aradial wave function, R and anangular wave function, Y.

An orbital is a mathematicalfunctioncalled awave functionthat describes an electron in an atom. ...Radial wave functionsfor a given atom depend only upon the distance, r from the nucleus.Angular wave functionsdepend only upon direction, and, in effect, describe the shape of an orbital

Faraday'ssecondlaw of electrolysis statesthat, when the same quantity of electricity is passed through several electrolytes, the mass of the substances deposited are proportional to their respective chemical equivalent or equivalent weight.

Ans :- Electrons may be described using a wave function. Thewave function's symbol is the Greek letter psi, Ψ or ψ. Thewave functionΨ is a mathematical expression.Solving the Schrödinger equationenables scientists to determinewave functionsfor electrons in atoms and molecules.

Option 3 is correct. Copper is above silver in the electrochemical series. Hence, it is more reactive than silver. Silver cannot displace Cu in CuCl2. So, it can be stored in a silver vessel.

but the correct option is 2

yes as copper is less reactive than zinc

Wave function, in quantum mechanics, variable quantity that mathematically describes the wave characteristics of a particle. The value of the wave function of a particle at a given point of space and time is related to the likelihood of the particle's being there at the time.

The given is Schrodinger equation

TheSchrodinger equationis used to find the allowed energy levels of quantum mechanical systems (such as atoms, or transistors). The associated wavefunction gives the probability of finding the particle at a certain position.

BeCl² is a linear shape

Niels Bohr Atomic Theory

An atom is made up of three particles, electrons, protons and neutrons. Electrons have a negative charge and protons have a positive charge whereas neutrons have no charge. They are neutral. Due to the presence of equal number of negative electrons and positive protons, the atom as a whole is electrically neutral.

The protons and electrons are located in a small nucleus at the center of the atom. Due to the presence of protons, the nucleus is positively charged.

The electrons revolve rapidly around the nucleus in fixed circular paths called energy levels or shells. The 'energy levels' or 'shells' or 'orbits' are represented in two ways: either by the numbers1, 2, 3, 4, 5 and 6 or by letters K, L, M, N, O and P. The energy levels are counted from center outwards.

Each energy level is associated with a fixed amount of energy. The shell nearest to the nucleus has minimum energy and the shell farthest from the nucleus has maximum energy.

There is no change in the energy of electrons as long as they keep revolving with the same energy level. But, when an electron jumps from a lower energy level to a higher one, some energy is absorbed while some energy is emitted.

When an electron jumps from a higher energy level to a lower one, the amount of energy absorbed or emitted is given by the difference of energies associated with the two levels. Thus, if an electron jumps from orbit 1 (energy E1) to orbit 2 (energy E2), the change in energy is given by E2- E1.

The energy change is accompanied by absorption ofradiation energy of E = E2E1= hwhere, h is a constant called'Planck's constant'and is the frequency of radiation absorbed or emitted. The value of h is 6.626 x 10-34J-s. The absorption and emission of light due to electron jumps are measured by use of spectrometers.

1

2

3

4

5

6

Mam can you expain it in another way..... I can't get it

Spin quantum number (ms)is not obtained from schrodinger wave equation because it is related to spin of the electrons. It is needed to explain Pauli's exclusion principle.

Rest all, principle quantum no., azimuthal quantum no., and magnetic quantum no. are derived from its solution.

If we combine the results of all the above gas laws we get an equation which holds true for ideal gas. The most common form of this equation is, since PV= K and V/T =k then

PV/T = constant

Thus, Ideal Gas Equation is given as

PV = nRT

where P= pressure of the gas; V=volume of the gas; n= Number of Moles; T=Absolute temperature; R=Ideal Gas constant also known as Boltzmann Constant = 0.082057 L atm K-1mol-1.

Using this equation, the study of any gas is possible under assumptions of STP conditions and subjecting the gas to reasonable restrictions to make it behave similarly to an Ideal gas.

thanks😀😁😂

Plaster of Paris the substance used to treat the fractured bones.

The chemical name of the powder is known as calcium Sulphate Hemihydrates.

The formula of the Plaster of Paris is

2CasO4.1/2 H20 CaS04.1/2H20 + 11/2H20->CaSO4.2H20

Water of crystallization is the added to the plaster of Paris to make it more durable.

It goes a long way in delivering sterling results to the users.

change in temperature

pollution is the introduction of contaminants into natural environment that causes adverse changes....

mainly there are 4 types of pollution...

air pollution , water pollution , noise pollution and soil / land pollution....

1 = Air Pollution - it is caused by using harmful gases in industries or factories... secondally it is caused by smoke coming out from vehicles , etc... air pollution is the contamination of air....

2 = Water Pollution - water pollution is the contamination of water.... it is mainly caused by us (human beings)... we are too careless and never think about the future... there is only 2.7% of fresh water on the earth and we are using it as i'll never get finish..... it is caused by harmful materials in water thrown by industrial people , etc...some people take their clothes near by the rivers and use detergents , and detergents makes the river water conaminated....

3= Noise Pollution - it is unnecesary sound in ecosystem.... it is caused by harmful noise in environment which is caused by loud d.j's , speakers , cars horns , etc...it can cause differnt types of ear problems to differnt aged people....

4= Land / Soil Pollution - it is the contamination of soil caused by harmful fertilizers used by farmers , dumping of untreated wastes , etc....

Thank you ~

Hence,active mass of 5 gram CaOis 1.Active mass of 5 g CaOis 1 because it's a solid.Active massdepends on no of moles of substance per unit volume of a substance. For solids and liquids,active massis always 1 because their density always remains constant.

Active mass depends on no of moles of substance per unit volume of a substance.It's an intensive property.For solids and liquids, active mass is always 1 because their density always remains constant.For gases, active mass changes with change in density.

Active mass of 5 g CaO is 1 because it's a solid.

Active mass of a solid or a liquid is supposed to remain ... The active mass of CaO is 1 gram because it is always equal...

Active mass of a solid or a liquid is supposed to remain constant because it is an intensive property which means that the the number of molecules per unit of a solid or a liquid remain constant keeping in mind that their density is also constant. The molecular weight of solids and liquids unlike gases also remains constant.

The active mass of CaO is 1 gram because it is always equal to 1 in solids.

active mass of 5g CaO is 1 'cuz it's a solid

So

Answer is 0.25/5.6

22.4 Liter at STP is Also a one mole of H2O and 18ml or 18 gm Water is also one mole of water thats why One mole of any Substance contains as equal to avegadro number of molecules that is 6.022 * 10^23

1.0

Read more on Brainly.in - https://brainly.in/question/5700724#readmore

6.023*10^23 (Avogadro's NUMBER)

The mistake is on LHSO is in the form of O2hence2Mg+O2--->2MgO

1. increases, decreases.2. increasing3. higher4. more

thanks

Advantages of classification

The foremost advantage of classifying organisms is that it makes the study of a wide variety of organisms very easy and convenient. It also shows the interrelationship between various groups. In biology, there is a basic need to identify organisms correctly and place them in the right category. This helps in learning about the large numbers of organisms in an accurate manner. Classifying organisms also helps in increasing the scope of biological sciences.

In organic chemistry, a homologous series is a series of compounds with the same functional group and similar chemical properties in which the members of the series differ by the number of repeating units they contain.

(i) Same functional group.(ii)Similar chemical properties.(iii)Regular gradation in physical properties.(iv)Successive member differ by - CH2

Quantisation means that a quantity can't change gradually and continuously but abruptly and discontinuously to have certain definite and discrete values . Bohr postulated that electron can revolve only In fixed orbits in which they canrevolve without gaining or loosing energy. This means energy of electron have certain definite values. So energy of an electron is quantised

4) polyester is the correct answer

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. The law of conservation of energy states that the total energy of an isolated system is constant; energy can be transformed from one form to another, but can be neither created nor destroyed

Synthesis of polyesters is generally achieved by a polycondensation reaction. See "condensation reactionsin polymer chemistry". The general equation for the reaction of a diol with a diacid is:

(n+1) R(OH)2+ n R´(COOH)2→ HO[ROOCR´COO]nROH + 2n H2O

thanks friend

WHAT'S POLYESTERS?-Polyesteris a category of polymers that contain the ester functional group. As a specific material, it most commonly refers to a type called Polyethylene Terephthalate (PET).

★ WHY POLYESTER IS USED FOR MAKING SAILBOATS??-Polyesteris widelyusedfor makimg of boats and forsail material because it has good strength and durability, relatively low stretch and reasonable prices (lowprice, in budget).

k=2.303/t *log[R]/[R1] where t=10 hours [R]=0.24 and [R1]=0.12

ALSO,

k=2.303/t1 *log[R]/[R2] where t=20 hours [R]=0.24 and [R1]=0.6

on adding the above equations,

2k=0.0693203+0.069377

k=0.1386973 or 0.14

c 7 v = 10+2t² => dv/dt = a = 4t

now average acceleration in 2-5 sec = Integration of 4t from t = 2 ,to t = 5, and Divide by total time = 3 sec

=> 4t²/2 = 2t² from t = 2 to t= 5=> [2(5)²-2(2)²]/3 =(50- 8)/3 = 42/3 = 14m/s²

option 4

ferromagnetism is highly attractive and they have unpaired electron.iron is ferromagnetism material because they have unpaired electron

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.CCl4 has a covalent bond..(b) CaCl2 has an ionic bond.

1 mole of carbon. Exactly12 gramsof pure carbon-12 powder is known as one mole. The number of atoms of carbon-12 present in this one mole sample is6.022 136 7x 1023. This number is known as Avogadro's number

hiii billa it is your account