Gaseous State Test

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Gaseous State Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which one of the following statements is not correct about the three states of matter i.e. solid, liquid and gaseous

A
Molecules of a solid possess least energy whereas those of a gas possess highest energy

B
The density of solid is highest whereas that of gases is lowest

C
Gases like liquids possess definite volumes

D
Molecules of a solid possess vibratory motion

Solution

Gases do not have definite shape and volume. Their volume is equal to the volume of the container.
Question 2
1 / -0

The temperature and pressure at which ice, liquid water and water vapour can exist together are

A
0⁰C,1 atm

B
2⁰ C, 4.7 atm

C
0⁰ C, 4.7 mm

D
-2⁰ C, 4.7 mm

Solution

All the three phases of water can coexist at 0⁰C & 4.7 mm pressure.
Question 3
1 / -0

Which of the following is true about gaseous state

A
Thermal energy = Molecular attraction

B
Thermal energy >> Molecular attraction

C
Thermal energy << Molecular attraction

D
Molecular forces >> Those in liquids

Solution

It is characteristic of gases i.e. Thermal energy >> molecular attraction
Question 4
1 / -0

Kinetic energy of molecules is highest in

A
Gases

B
Solids

C
Liquids

D
Solutions

Solution

In gases, molecular attraction is very less and intermolecular spaces are large hence kinetic energy of gases is highest.
Question 5
1 / -0

Which of the following statement is correct

A
In all the three states the molecules possess random translational motion

B
Gases cannot be converted into solids without passing through liquid state

C
One of the common property of liquids and gases is viscosity

D
According to Boyle's law V/P is constant at constant T

Solution

Gases and liquids, both can flow and posses viscosity.
Question 6
1 / -0

Which one of the following is not a unit of pressure

A
Newton

B
Torr

C
Pascal

D
Bar

Solution

Newton is unit of force.
Question 7
1 / -0

Which of the following relations for expressing volume of a sample is not correct

A
1L = 10³ml

B
1dm³ = 1L

C
1L = 10³m³

D
1L = 10³cm³

Solution

1L = 10^-3m³= 10³ cm³= 1dm³= 10³ ml .
Question 8
1 / -0

One atmosphere is numerically equal to approximately

A
10⁶ dynes cm^-2

B
10² dynes cm^-2

C
10⁴ dynes cm^-2

D
10⁸ dynes cm^-2

Solution

1 atm = 10⁶dynes cm^-2
Question 9
1 / -0

Pressure of a gas in a vessel can be measured by

A
Barometer

B
Manometer

C
Stalgometer

D
All the baove

Solution

Barometer is used to measure atmospheric pressure of mixture of gases. Staglometer is used to measure surface tension. Only manometer is used to measure pressure of pure gas in a vessel.

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Gaseous State Test - 1

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Gaseous State Test - 1

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Question 1

Molecules of a solid possess least energy whereas those of a gas possess highest energy

The density of solid is highest whereas that of gases is lowest

Gases like liquids possess definite volumes

Molecules of a solid possess vibratory motion

Solution

Question 2

00C,1 atm

20 C, 4.7 atm

00 C, 4.7 mm

-20 C, 4.7 mm

Solution

Question 3

Thermal energy = Molecular attraction

Thermal energy >> Molecular attraction

Thermal energy << Molecular attraction

Molecular forces >> Those in liquids

Solution

Question 4

Gases

Solids

Liquids

Solutions

Solution

Question 5

In all the three states the molecules possess random translational motion

Gases cannot be converted into solids without passing through liquid state

One of the common property of liquids and gases is viscosity

According to Boyle's law V/P is constant at constant T

Solution

Question 6

Newton

Torr

Pascal

Bar

Solution

Question 7

1L = 103 ml

1dm3 = 1L

1L = 103 m3

1L = 103 cm3

Solution

Question 8

106 dynes cm-2

102 dynes cm-2

104 dynes cm-2

108 dynes cm-2

Solution

Question 9

Barometer

Manometer

Stalgometer

All the baove

Solution

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0⁰C,1 atm

2⁰ C, 4.7 atm

0⁰ C, 4.7 mm

-2⁰ C, 4.7 mm

1L = 10³ml

1dm³ = 1L

1L = 10³m³

1L = 10³cm³

10⁶ dynes cm^-2

10² dynes cm^-2

10⁴ dynes cm^-2

10⁸ dynes cm^-2