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Liquefaction of gases



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Q1. Which of the following is an expression for Boyle?s temperature?

(a) a/Rb
(b) 27a/R
(c) a/b
(d) Ra/8b

Q2. In van der Waal?s equation, b is known as ______________

(a) volume constant
(b) pressure constant
(c) volume correction
(d) pressure correction

Q3. The value of b for carbon dioxide is given as 42.69 x 10-6m3/mol. What do you think is the volume of a molecule?

(a) 7.59 m3
(b) 7.03 m3
(c) 76.09 m3
(d) 7.09 m3

Q4. Which of the following can be the value of ?b? for Helium?

(a) 23.71 x 10-6 m2/mol
(b) 23.71 x 10-6 m3/mol
(c) 23.71 x 10-6 m3 mol
(d) 23.71 x 10-6 m/mol

Q5. If the value of a is greater, what does it mean?

(a) the gas liquefies easily
(b) the gas cannot liquify easily
(c) gas obeys ideal gas law
(d) gas particles have random motion

Q6. A gas that is liquefied by applying pressure below critical temperature is called ____________ of the substance.

(a) vapor
(b) liquid
(c) solid
(d) plasma

Q7. A fluid is a _______________

(a) gas
(b) liquid
(c) solid
(d) both gas and liquid

Q8. What is the ratio of critical temperature to Boyle?s temperature of the same gas?

(a) 8/27
(b) 27/8
(c) 8
(d) 27

Q9. Which of the following is Greater?

(a) Boyle?s temperature
(b) Boyle?s temperature = critical temperature
(c) Critical temperature
(d) Boyle?s temperature = 1/critical temperature

Q10. Which of The following is a critical temperature for Carbon dioxide?

(a) 32-degree centigrade
(b) 30.98-degree centigrade
(c) 40-degree centigrade
(d) 30.91 degree Kelvin


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486 views

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

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244 Year Ago

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

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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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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

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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

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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.

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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

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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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