Question # 1

All cycle engines working reversibly between same temperature of source and sink have the same efficiency This is the statement for the.

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Carnot cycle

Carnot theorem

Narnst theorem

Second law of thermodynamics

Which of the following is not a characteristics of solids.

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Definite shape

Definite mass

Definite volume

Fluidity

The tyndall effect was used by Zsigmondy to device.

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The ultramicroscope

The ultracentrifuge

The osmometer

Electrodialysis

The Langmuir adsorption iso therrn shows that the amount of adsorbed gas per gram of the solid is equal to.

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ap/1+bp

ap+1/1-bp

1+ap/1-bp

a(1+bp)

At extremely low pressures, the van der Waals equations for one mole may be written as.

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PV = RT + Pb

PV = RT

PV = RT - a/V

(P +a) (V-b) = RT

Which of the following methods does not give the weight average molecular weight.

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Sedimentation equilibrium

Sedimentation velocity

Light scattering

Osmotic method

Poise is a unit of.

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Refractive index

Optical activity

Fluidity

Viscosity

An emulsifier is an agents which

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Stabilizes an emulsion

Homgeneises and emulsion

Causes coagulation of an emulsion

Helps in the formation of an emulsion

For one mole a gas, the total kinetic energy is equal to.

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2/3 Rt

3/2 RT

2/3 kT

3/2 kT

The minimum amount of energy that the reacting molecules must posses at the time of collations in under to produce effective collisions is called.

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Free energy

Threshold energy

Activation energy

External energy

Among the unit cells given below, which has the highest symmetry

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Monoclinic

Cubic

Hexagonal

Orthorhombic

The half life period of any first order reaction.

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Is half the specific rate constant

Is independent of the initial concentration

Is always the same whatever the reaction

Is directly proportional to the initial concentration of the reactant

The volume of a given mass of gas at constant temperature varies inversely with the pressure. This is a statement of.

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Charlea's law

Avogadro's law

Boyle's law

Dalton 's law

The isotonic nucleotide X and Y have mass numbers 35 and 37 respectively if the atomic number of X is 17 the atomic number of Y will be.

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15

17

19

18

Which of the following properties are not related to an atom.

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An atom consists of two basic parts , a nucleus and one or more electons.

The nucleus is the central core of an atom

An electron is a heavy and negatively charged particle.

The nucleus itself consiste of two particles.

The device that convert the chemical energy of fuel directly into electrical energy is called.

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Galvanic cell

Electrolytic cell

Fuel cell

Concentration cell

The mole of photon is known as

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Quantum

Eienstein

Energy Packet

None of the above

The expression of specific conductance is given by

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Ls= I/R , l/A

Ls = L I/A

Ls = I/L , A/l

LS = r l/A

Which of the following solution would have the largest depression in freezing point.

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1% glucose

1 % KCl

1 % AlCl3

1 % BaCl2

Which of the following is not correct criteria for an idea solution.

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Enthalpyh of mixing = 0

Volume of mixing = 0

Free energy of mixing = 0

Obeys Reoult's law

Which of the following is a buffer solution.

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CH3COOH + NH4OH

CH3 COOH + HCl

CH3COOH + NaOH

CH3COOH + CH3COONa

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