Explore topic-wise InterviewSolutions in .

entropy is a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system.

According to the Second Law of Thermodynamics a spontaneous change results in an increase in theentropyof the universe. In an isolated system, when the system'sentropyreaches the maximum, the system stays there because any further change would reduceentropy. That's obviously theequilibriumposition.

The second law of thermodynamics states that a process involving an isolatedsystemwill bespontaneousif theentropyof thesystemincreases over time. ... In many processes, the increase inentropyof the surroundings is accomplished via heat transfer from thesystemto the surroundings (i.e. an exothermic process).

In order for a reaction to benonspontaneous, it must be endothermic, accompanied by a decrease inentropy

1

oxidation is the burning of substance in air. It is of three types :-1. rapid oxidation​ 2. slow oxidation 3. spontaneous oxidation

oxidations means the substance which give away electrons eg: as iron reacts with oxygen it forms rust .like ZnSO 4

I think its b and d.........

Ans :- IUPAC name - tridecanoic acidtridecylic acid

(I) CH3 - CH2 - OHThe IUPAC name of CH3-CH2-OH is Ethanol. But the common name is Ethyl Alcohol.

(2) CH3-CH=OAcetaldehyde (systematic name ethanal)

धातु न्यूनता दोष वाला क्रिस्टल FEoहै

According to your equation it takes 2 moles of N2O5 to make one mole of Oxygen.

So, the oxygen will be made at half the rate at which the N2O5 is destroyed.

Acid rainis caused by nitrogen oxides and sulfur dioxide produced by both natural processes and the combustion of fossil fuels. Eventually, these oxidesreactwith oxygen and water to give nitricacidand sulfuricacid.

Reactionbetween sodium hydroxide andnitric acidis a textbook example ofacid baseneutralisation. Sodium ions combine with nitrate ions to form sodium nitrite and hydrogen ionsreactwith hydroxide ions to form water. ... Naturally when anacidandbase react, they form salt and water.

According to your equation it takes 2 moles of N2O5 to make one mole of Oxygen.

So, the oxygen will be made at half the rate at which the N2O5 is destroyed.

Sodium doesn't reacts with ethershenceoption c

C is the correct answer of this questions

option c is the correct answer

1-ethoxy-2-methyl-propane

Alcohols react with liquid phosphorus(III) chloride (also called phosphorus trichloride) toyield chloroalkanes.

3CH3CH2CH2OH+PCl3→3CH3CH2CH2Cl+H3PO3

&/÷^*(

Since copper is below iron in the reactivity series, it is less reactive than iron, so it will not replace the iron in the compound. So there is no reaction, and the equation should be written as:

Cu(s) + FeSO4(aq)→no reaction

when Iron nail(ferrum)is dipped in copper sulphate(cuso4) there takes reaction between them and copper sulphate change its color form blue to light green .This shows Iron is more reactive than copper it can replace copper form cuso4. cuso4 is in blue color and feso4 is a light green colour

Feso4= iron sulphateis the correct answer

Feso4=iron sulphatepbcl2= lead chloride where lead valency is. 2 here

1. iron sulphate 2. lead chloridethis is your answer

1)Feso4: iron sulphate2)Pbci2: lead chloride

1)- Iron sulphate2)- lead chloride

ferrous sulfate for FeSo4 and Lead chloride for pbcl2

ferrous sulphate and lead chlofide

Iron sulphate and lead chloride

X→443Kconc.H2SO4Y ( unsaturated compound)Z is hydrogen (Colourless gas)

X, Y and Z are alcohol, alkene and hydrogen respectively.

Suppose X is ethanol,it gives alkene on reacting with conc. H2SO4

C2H5OH (X)→443Kconc.H2SO4 C2H4(Y)

2C2H5OH→Na2C2H5O-Na++ H2(Z)

Role of sulphuric acid: It is used as a dehydrating agent in the above reaction.

The reaction of a halogen with an alkane in the presence of ultraviolet (UV) light or heat leads to the formation ofa haloalkane (alkyl halide).An example is the chlorination of methane.

Option B is correct.

a) -1b) -2c) -3d) -4e) -5

1) Propionic acid is a naturally occurring carboxylic acid with chemical formula CH₃CH₂CO₂H

2) benzene

4Fe + 3O2 + 6H2O → 4Fe(OH)3.

reaction of iron with oxygen cause rusting

reaction of iron with oxygen and water is rusting 4Fe + 3O2 + 6H2O = 4Fe(OH)3

reaction of iron and oxygen is caused rusting

4fe+3o2+6H2o=4fe(OH)3

4Fe +3O2+6H2O=4fe(OH)3

the process is called rusting

The thermal decomposition of iron(II) sulfate to produce iron(III) oxide, sulfur dioxide and oxygen. This reaction takes place at a temperature near 700°C. Impurities: oxide sulfur() SO3.

Atomic number is defined as the number of protons that a chemical element has in its nucleus.

2-Bromo-2,3-dimethylpentane

2-bromo 2,3di methyl pentane

option d , because... H2SO4 , will break into 3 ions .

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

Steradian, unit of solid-angle measure in the International System of Units (SI), defined as the solid angle of a sphere subtended by a portion of the surface whose area is equal to the square of the sphere’s radius.

TheSIunitofsolid angleisthesteradian (sr).The solid angleof a complete sphere is 4π sr.The solid anglecorresponding totheface of a cube measured atthecentre is 2π/3 sr. One steradian is equal to (180/π)2square degrees.

Steradian,unitofsolid-anglemeasure in the International System ofUnits(SI),definedas thesolid angleof a sphere subtended by a portion of the surface whose area is equal to the square of the sphere's radius.

Steradian,unitofsolid-anglemeasure in the International System ofUnits(SI),definedas thesolid angleof a sphere subtended by a portion of the surface whose area is equal to the square of the sphere's radius.

The solid angle is the angle created in three-dimensional space that an object subtends at a point. Solid angle is a measure of how big an object appears to an observer when looking from that point. The symbol for solid angle is Ω (Greek letter omega).

A solid angle can be defined in terms of an area on the surface of a sphere which is centred at the vertex of the angle. This is the equivalent of defining a planar angle in terms of the length of arc on a circle subtended to the centre. Solid angle can also be defined as an angle formed by three or more planes intersecting at a common point (the vertex). The SI unit of solid angle is the steradian (sr). The solid angle of a complete sphere is 4π sr. The solid angle corresponding to the face of a cube measured at the centre is 2π/3 sr. One steradian is equal to (180/π)2square degrees.

three-dimensional analogue of an angle, such as that subtended by a cone or formed by planes meeting at a point. It is measured in steradians

From left to right on the periodic table, acid-base characterof oxides andhydroxidesgo frombasicto acidic. - Increasing charge on an anion increases the production ofbasicsolutions. - As electronegativity increase, production of ionic cations increases because elements are more able to adopt a cation.

Metallicoxides arebasicinnaturebecause they react with dilute acids to form salt and water. They also react with water to formmetal hydroxideswhich are alkaline innaturebecause thesemetal hydroxidesrelease OH- ions in solution. Therefore, nonmetallicoxides would be acidic innature.

hit like if you find it useful

hit like if you find it useful

4)Rutherfordium is a syntheticchemical elementwith symbol Rf andatomic number 104, named after physicist Ernest Rutherford. As a synthetic element, it is not found in nature and can only be created in a laboratory. It is radioactive; the most stable known isotope,267Rf, has a half-life of approximately 1.3 hours.

Let oxidation number of Mn be x in the compound.Oxidation number of oxygen is - 2By average oxidation number method,

X-2-1=0X=+3So, oxidation number of Mn is +3

An atom a fundamental piece of matter. (Matter is anything that can be touched physically.) Everything in the universe (except energy) is made of matter, and, so, everything

the mass of a molecule that is equal to the sum of the masses of all the atoms contained in the molecule

This is because of the electronegitivity and size difference in the elements N and P. N has a higher electronegitivity and pulls the electrons in the N-H bonds toward itself, creating amorepolar bondthanthe P-H bond. N issmaller thanP thus it is a better lewis base, being able to formmorestable sigma bonds.

please pic is clearly

Ending and starting point are on the same line and they are 20kms away from each other.

is it not so hard 4r 11th grade students... plzzz

is this an organic chemistry question? or you are asking for general industrial process?

organic chemistry question

Then the first equation is the answer to your question. It is selective addition process

but I can't able to understand that actually 😧😧

spin angular momentum has two components namely +(h/2 pi)(1/2) and -(h/2 pi)(1/2) on the specified axis.