When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

Question

When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

A. are above inversion temperature

B. exert no attractive force on each other

C. do work equal to loss in kinetic energy

D. collide without loss of energy

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To which of the following mixtures is the Dalton's law of partial pressures not applicable?

A. $H_{2} + O_{2}$

B. $N_{2} + O_{2}$

C. NO + $O_{2}$

D. Xe + Ar

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In a face centred cubic arrangement of ions, the coordination number of ions is

A. 6

B. 8

C. 12

D. 4

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22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

A. 32 g

B. 16 g

C. 44.8 g

D. 48.5 g

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Gases deviate from the ideal behaviour because their molecules

A. possess negligible volume

B. have forces of attraction between them

C. are polyatomic

D. are not attracted to one another

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What will be the mass of 6.03 x $^{10^{23}}$ molecules of carbon monoxide ?

A. 18.00

B. 28.01

C. 56.02

D. 14.05

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In fluorite structure coordination number of calcium ions is

A. 4

B. 6

C. 8

D. 3

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At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

A. $C H_{3} C O O H < C_{2} H_{5} O H < C_{2} H_{5} I$

B. $C_{2} H_{5} I < C H_{3} C O O H < C_{2} H_{5} O H$

C. $C_{2} H_{5} I < C_{2} H_{5} O H < C H_{3} C O O H$

D. $C_{2} H_{5} O H < C_{2} H_{5} I < C H_{3} C O O H$

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According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

A. Equal number of electrons

B. Equal number of ions

C. Equal number of atoms

D. Equal number of molecules

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The average kinetic energy of the molecule of $S O_{2}$ (moL wt. = 64) at 27°C is E. Then the average kinetic energy of $C O_{2}$ at 27°C is

A. $\frac{E \times 64}{44}$

B. $\frac{E \times 44}{64}$

C. E

D. 22E

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Correct gas equation is

A. $\frac{P_{1} V_{1}}{P_{2} V_{2}} = \frac{T_{1}}{T_{2}}$

B. $\frac{V_{1} T_{2}}{P_{1}} = \frac{P_{2} T_{1}}{T_{2}}$

C. $\frac{P_{1} T_{1}}{V_{1}} = \frac{P_{2} T_{2}}{V_{2}}$

D. $\frac{V_{1} V_{2}}{T_{1} T_{2}} = P_{1} P_{2}$

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In NaCl type structure, the coordination number of the cation and anion are

A. 6 and 4

B. 6 and 6

C. 4 and 4

D. 8 and 4

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In zinc blende structure, the zinc atoms occupy

A. all tetrahedral sites

B. all octahedral sites

C. half of the octahedral sites

D. half of the tetrahedral sites

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Certain volume of a gas exerts on its walls some pressure at a particular temperature. It has been found that by reducing the volume of the gas to half its original value, the pressure becomes I twice that the initial value of constant temperature. This happens because

A. More number of a gas molecules strike the surface per second

B. Velocity of the gas molecules increases

C. Gas molecules attract each other

D. Weight of the gas increase with volume

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Which of the following should be most viscous?

A. $C H_{3} O H$

B. $C H_{3} C H_{2} O H$

C. $C H_{3} O C H_{3}$

D. $H O C H_{2} C H_{2} O H$

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Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

A. 1.12 litres

B. 2.24 litres

C. 22.4 litres

D. 11.2 litres

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In a dose packed arrangement of N spheres, the number of tetrahedral holes are

A. N

B. 2N

C. N/2

D. $N_{2}$

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Boltzmann constant is given by

A. R

B. R+N

C. R:N

D. R-N

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The weight of 22.4 litres of any gas at N.T.P. represent its

A. gm atomic weight

B. gm molecular weight

C. gm equivalent weight

D. None of these

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Volume occupied by 1 gm equivalent of oxygen at NTP is

A. 22.4 litres

B. 2.24 litres

C. 5.6 litres

D. 11.2 litres

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22.4 litre of any gas at N.T.P. will contain

A. One gram equivalent

B. One gram atomic weight

C. One gram atom

D. One gram molecule

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An element has atomic weight 24 and equivalent weight 11.9. Its valency is

A. 1

B. 2

C. 3

D. 4

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20 litres of hydrogen gas weighs about

A. 1.8 g

B. 3.6 g

C. 224 g

D. 12.2 g

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The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively

A. 8,14,9

B. 1,2,4

C. 1,4,2

D. 8,4, 2

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In a closed packed structure the pattern ABAB...... represents which one of the following:

A. ccp

B. hcp

C. fccp

D. bcc

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In anti-fluorite structure the negative ions

A. occupy tetrahedral voids

B. occupy octahedral voids

C. are arranged in ccp

D. are arranged in hcp

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What types of forces are present in molecular solids?

A. electrovalent bonds

B. hydrogen bonds

C. metallic bonds

D. Van der Waal's forces

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One gram molecule of a gas at N.T.P occupies 22.4 litres. This fact was derived from

A. Benjamin hypothesis

B. Avogadro's hypothesis

C. Dalton's theory

D. Law of atomic volume

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Chloroform and benzene form a pair of miscible liquids. These can be separated by

A. a separating funnel

B. distillation

C. sublimation

D. filtration

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A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

A. be enlarged

B. be collapse

C. remain unchanged in size

D. have half its volume of the gas

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If the temperature and pressure remain unchanged the volume of $O_{2}$ obtained by the decomposition of a certain volume of $S O_{2}$ will be

A. Triple the volume of $S O_{2}$

B. Half the volume of $S O_{2}$

C. Equal to the volume of $S O_{2}$

D. One third the volume of $S O_{2}$

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Accepted Answer

B. exert no attractive force on each other

When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

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Related Questions

To which of the following mixtures is the Dalton's law of partial pressures not applicable?

In a face centred cubic arrangement of ions, the coordination number of ions is

22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

Gases deviate from the ideal behaviour because their molecules

What will be the mass of 6.03 x $^{10^{23}}$ molecules of carbon monoxide ?

In fluorite structure coordination number of calcium ions is

At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

The average kinetic energy of the molecule of $S O_{2}$ (moL wt. = 64) at 27°C is E. Then the average kinetic energy of $C O_{2}$ at 27°C is

Correct gas equation is

In NaCl type structure, the coordination number of the cation and anion are

In zinc blende structure, the zinc atoms occupy

Certain volume of a gas exerts on its walls some pressure at a particular temperature. It has been found that by reducing the volume of the gas to half its original value, the pressure becomes I twice that the initial value of constant temperature. This happens because

Which of the following should be most viscous?

Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

In a dose packed arrangement of N spheres, the number of tetrahedral holes are

Boltzmann constant is given by

The weight of 22.4 litres of any gas at N.T.P. represent its

Volume occupied by 1 gm equivalent of oxygen at NTP is

22.4 litre of any gas at N.T.P. will contain

An element has atomic weight 24 and equivalent weight 11.9. Its valency is

20 litres of hydrogen gas weighs about

The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively

In a closed packed structure the pattern ABAB...... represents which one of the following:

In anti-fluorite structure the negative ions

What types of forces are present in molecular solids?

One gram molecule of a gas at N.T.P occupies 22.4 litres. This fact was derived from

Chloroform and benzene form a pair of miscible liquids. These can be separated by

A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

If the temperature and pressure remain unchanged the volume of $O_{2}$ obtained by the decomposition of a certain volume of $S O_{2}$ will be

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When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

Correct Answer :

Show all State of Matter MCQ

Related Questions

To which of the following mixtures is the Dalton's law of partial pressures not applicable?

In a face centred cubic arrangement of ions, the coordination number of ions is

22.4 litres of SO2 at 27.3°C and 1 atmosphere pressure shall weigh

Gases deviate from the ideal behaviour because their molecules

What will be the mass of 6.03 x 1023 molecules of carbon monoxide ?

In fluorite structure coordination number of calcium ions is

At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

The average kinetic energy of the molecule of SO2 (moL wt. = 64) at 27°C is E. Then the average kinetic energy of CO2 at 27°C is

Correct gas equation is

In NaCl type structure, the coordination number of the cation and anion are

In zinc blende structure, the zinc atoms occupy

Certain volume of a gas exerts on its walls some pressure at a particular temperature. It has been found that by reducing the volume of the gas to half its original value, the pressure becomes I twice that the initial value of constant temperature. This happens because

Which of the following should be most viscous?

Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

In a dose packed arrangement of N spheres, the number of tetrahedral holes are

Boltzmann constant is given by

The weight of 22.4 litres of any gas at N.T.P. represent its

Volume occupied by 1 gm equivalent of oxygen at NTP is

22.4 litre of any gas at N.T.P. will contain

An element has atomic weight 24 and equivalent weight 11.9. Its valency is

20 litres of hydrogen gas weighs about

The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively

In a closed packed structure the pattern ABAB...... represents which one of the following:

In anti-fluorite structure the negative ions

What types of forces are present in molecular solids?

One gram molecule of a gas at N.T.P occupies 22.4 litres. This fact was derived from

Chloroform and benzene form a pair of miscible liquids. These can be separated by

A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

If the temperature and pressure remain unchanged the volume of O2obtained by the decomposition of a certain volume of SO2 will be

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22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

What will be the mass of 6.03 x $^{10^{23}}$ molecules of carbon monoxide ?

The average kinetic energy of the molecule of $S O_{2}$ (moL wt. = 64) at 27°C is E. Then the average kinetic energy of $C O_{2}$ at 27°C is

If the temperature and pressure remain unchanged the volume of $O_{2}$ obtained by the decomposition of a certain volume of $S O_{2}$ will be