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Real and Ideal gases



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Q1. We have a jar filled with gas characterised by parameters P, V and T and another jar B filled with a gas with parameters 2P, V/4,2T; where the symbols have their usual meanings. The ratio of the number of molecules of jar A to those of jar B is?

(a) 1:1
(b) 1:2
(c) 2:1
(d) 4:1

Q2. The temperature of H2 at which the rms velocity of its molecules is seven times the rms velocity of the molecules of nitrogen at 300K is?

(a) 2100K
(b) 1700K
(c) 1350K
(d) 1050K

Q3. Average velocity of a gas becomes 4 times. What will be the effect on rms velocity at the same temperature?

(a) 1.4 times
(b) 4 times
(c) 3 times
(d) 2 times

Q4. If an ideal gas has a volume V at 27?C and it is heated at a constant pressure, so that its volume becomes 1.5V, then the value of final temperature is?

(a) 327K
(b) 177?C
(c) 873K
(d) 600?C

Q5. If a given mass of gas occupies a volume of 10cc at 1 atmospheric pressure and temperature 100?C, what will be its volume at 4 atmospheric pressure, the temperature being the same?

(a) 100cc
(b) 400cc
(c) 104cc
(d) 2.5cc

Q6. R/Cv =0.67 for a gas. Then this gas is made up of which molecules?

(a) Diatomic
(b) Mixture of diatomic and polyatomic
(c) Monoatomic
(d) Polyatomic

Q7. Assertion: Air pressure in a car tyre increases during driving.

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

Q8. The gas having average speed four times as that of SO2 (molecular mass 64) is ___________

(a) He(molecular mass 64)
(b) O2(molecular mass 4)
(c) H2(molecular mass 32)
(d) CH4(molecular mass 16)

Q9. Two gases are at absolute temperatures 300K and 350K respectively. What is the ratio of average kinetic energy of their molecules?

(a) 7:6
(b) 6:7
(c) 36:49:00
(d) 49:36:00

Q10. The equation of state for g of oxygen at a pressure P, and temperature T, when occupying a volume V, will be?

(a) PV = (5/32)RT
(b) PV = 5RT
(c) PV = (5/2)RT
(d) PV = (5/16)RT


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1 Answer
486 views

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

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

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1 Answer
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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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1 Answer
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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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414 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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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.

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1 Answer
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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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