Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 41

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IMPORTANT

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The density of oxygen gas will be the highest under which of the following conditions?

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Important Questions on States of Matter: Gaseous and Liquid states

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 42

Human body has, on an average,

10 L

of blood and each

{cm}^{3}

of this has

0.8 mg

of dissolved

{CO}_{2}

. What could be the volume of

{CO}_{2}

(at STP) that can be recovered from the human body on the average?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 43

A flask containing

250 mg

of air at

27^{\circ} C

is heated till

25 %

of air, by mass, is expelled from it. What is the final temperature of the flask?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 44

What is the number of moles per litre for an ideal gas in terms of its pressure $P$ , gas constant $R$ and temperature $T$ ?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 45

In a closed flask of

5 L, 1.0 g

of

H_{2}

gas is heated from

300

to

600 K

. Which statement is false for it?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 46

$0.5$ moles of oxygen and $1.5$ moles of hydrogen are mixed and kept at $760 mm of Hg$ pressure and $27^{\circ} C$ temperature. What will be the approximate total volume occupied by the mixture?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 47

Pure

{SO}_{2}

is stored in a tank of

100 L

capacity at

2 atm

pressure and

367^{\circ} C

. What will be the mass of the gas?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 48

The density of Helium is

0.1784 kg m^{- 3}

at

STP

. If a given mass of Helium at

STP

is allowed to expand to

1.400

times of its initial volume by changing

P

and

T

, what is its resultant density?

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Chemistry Crash Course MHT-CET>Chapter 5 - States of Matter: Gaseous and Liquid states>Exercise 1>Q 49

Two vessels

A

and

B

have the same gas. If the pressure, volume and temperature of the gas in

A

are all thrice than that of the gas in

B

, then what is the ratio of the number of molecules of

A

to that of

B

?