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Kinetic theory of gases



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Q1. Statement: The root mean square and most probable speeds of the molecules in a gas is symmetrical.

(a) Both statement and reason are true and the reason is the correct explanation of the statement
(b) Both statement and reason are true but the reason is not a correct explanation of the statement
(c) Statement it true but the reason is false
(d) Both statement and reason are false

Q2. A bulb contains one mole of hydrogen mixed with one mole of oxygen at temperature T. The ratio of rms values of velocity of hydrogen molecules to that of oxygen molecules is?

(a) 1:16
(b) 1:4
(c) 4:1
(d) 16:1

Q3. The temperature of gas is held constant, while its volume is decreased. The pressure exerted by the gas on the wall of the container increases, because of its molecules ___________

(a) Strike the walls with higher velocities
(b) Strike the walls with large farce
(c) Strike the walls more frequently
(d) Are in contact with the walls for a shorter time

Q4. A gas behaves as an ideal gas at ___________

(a) Low pressure and high temperature
(b) Low pressure and low temperature
(c) High pressure and low temperature
(d) High pressure and high temperature

Q5. For Boyle?s law to hold good, the gas should be ___________

(a) Perfect and of constant mass and temperature
(b) Real and of constant mass and temperature
(c) Perfect and at constant temperature but variable mass
(d) Real and at constant temperature but variable mass

Q6. At Boyle?s temperature?

(a) Joule?s effect is positive
(b) Van der Waal?s equation becomes zero
(c) Gases obey Boyle?s law
(d) Water solidifies

Q7. Cooking gas containers are kept in a lorry moving with uniform speed. The temperature of the gas molecules inside will ___________

(a) Increase
(b) Decrease
(c) Remain the same
(d) Decreases for some, while the increase for others

Q8. The ration of the speed of sound in nitrogen gas to that in helium gas, at 300 K is?

(a) ?(2/7)
(b) ?(1/7)
(c) ?3/5
(d) ?6/5

Q9. What is the average velocity of the molecules of an ideal gas?

(a) Infinity
(b) Constant
(c) Unstable
(d) Zero

Q10. On which factor does the average kinetic energy of gas molecules depend?

(a) Nature of the gas
(b) Temperature
(c) Volume
(d) Mass


0 votes
1 Answer
486 views

1° C Rise In Temperature Is Equal To A Rise Of

Modified 244 Year Ago

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486
244 Year Ago

1° C Rise In Temperature Is Equal To A Rise Of

0 votes
1 Answer
459 views

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

Modified 244 Year Ago

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459
244 Year Ago

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

0 votes
1 Answer
440 views

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

Modified 244 Year Ago

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244 Year Ago

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

0 votes
1 Answer
414 views

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

Modified 244 Year Ago

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244 Year Ago

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

0 votes
1 Answer
412 views

Molecules/ions And Their Magnetic Properties Are Given Below

Modified 244 Year Ago

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244 Year Ago

Molecules/ions And Their Magnetic Properties Are Given Below

0 votes
1 Answer
409 views

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

Modified 244 Year Ago

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244 Year Ago

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

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