11th class Physics chapter 6 online mcq test with answers for ICS part 1 Physics chapter 6(Fluid Dynamics)

Question # 1

Collision between gas molecules are perfectly

C

Elastic

E
A
Inelastic

B
Neither elastic nor inelastic

C
All of these

D

Question # 2

According to kinetic theory of gases, the size of the molecule is.

Much smaller than the separation between molecule

M
A
Much larger than the separation btween molecules

B
Botha a and b

C
Much larger ahtn the separation between atom

D

Question # 3

In an isothermal chagne, internal energy.

Decrease
A
Increase
B
Remain same
C
Becomes zero
D

Question # 4

Boyle's law states that " The volume of a given mass of a gas is...................."

Directly proportional to absolute temperature
A
Invesely proportional to absolute temperature
B
Directly proportional to density
C
Inversely proportional topressure
D

Question # 5

Entropy of a system in reversibel process

Fluctuates
A
Increases
B
Is infinite
C
Decrease
D

Question # 6

When two obnects are made in thermal contact heaving same temperature then they are at.

Thermal Equilibrium
A
Chemical equilibrium
B
Mechanicla Equilibrium
C
Physical Equilibrium
D

Question # 7

Which is not exmple of ddiablatic process.

Rapid escape of air from burst tyre
A
Rapid expansion of air
B
Conversion of water into ice in refrigerator
C
Cloud formation in the atmosphere
D

Question # 8

The efficiency of carnot eninge is always.

Greater than real engine
A
Less than real engine
B
Equal to the real engine
C
Both a and b
D

Question # 9

What can be calculated from the curve under PV graph.

Heat
A
Work done
B
Temperatures
C
Internal energy
D

Question # 10

Work done by the system is takn as

Positive
A
Negative
B
Undefined
C
None of these
D

Question # 11

KE of molecules of an ideal gas at absolutely zero will be

0
A
Infinite
B
Very High
C
Below zero
D

Question # 12

No entrpy chagne is associated with

isothermal process
A
Adiabatic process
B
Isobaric process
C
Isochoric process
D

Question # 13

'R' is called

Universal constant
A
Universal per molecule constant
B
Universal gas constant
C
All of the above
D

Question # 14

Pressure of a gas is directly proportional to average.

Potential energy

A
Rotational energy

B
Translation K.E

C
Compressed P.E.
D

Question # 15

K = R/NA , Where k is called.

Rydsberg constant
A
Boltzmann constant
B
Stefan constant
C
Planck's constant
D

Question # 16

What one is not an isothermal change.

Melting of solid
A
Bioling of liquid
B
Bursting of bicycle tyre
C
Slow expansion of gas
D

Question # 17

A device which covnerts thermal eergy into mechanical energy is called.

Turbine
A
Heat engine
B
Carnot engine
C
Rerigerator
D

Sr.#	Question	Answer
1	According to kinetic theory of gases, the size of the molecule is.	A. Much smaller than the separation between molecule M B. Much larger than the separation btween molecules C. Botha a and b D. Much larger ahtn the separation between atom
2	Internal energy is similar to the	A. Vibrational K.E. B. Gravitational P.E. C. K.E. D. All of these
3	Which is not exmple of ddiablatic process.	A. Rapid escape of air from burst tyre B. Rapid expansion of air C. Conversion of water into ice in refrigerator D. Cloud formation in the atmosphere
4	A device which covnerts thermal eergy into mechanical energy is called.	A. Turbine B. Heat engine C. Carnot engine D. Rerigerator
5	Pressure of a gas is directly proportional to average.	A. Potential energy B. Rotational energy C. Translation K.E D. Compressed P.E.
6	Work done by the system is takn as	A. Positive B. Negative C. Undefined D. None of these
7	What can be calculated from the curve under PV graph.	A. Heat B. Work done C. Temperatures D. Internal energy
8	No entrpy chagne is associated with	A. isothermal process B. Adiabatic process C. Isobaric process D. Isochoric process
9	Thermodynamics mostly deals with.	A. Measuremetn of quantity B. Transfer of quantity of heat C. Change of state D. Conversion of heat to other forms of energy
10	The efficiency of carnot engine depends upon	A. Sink temperature B. Source temperature C. Both a and b D. The working substance

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Collision between gas molecules are perfectly C

According to kinetic theory of gases, the size of the molecule is.

In an isothermal chagne, internal energy.

Boyle's law states that " The volume of a given mass of a gas is...................."

Entropy of a system in reversibel process

When two obnects are made in thermal contact heaving same temperature then they are at.

Which is not exmple of ddiablatic process.

The efficiency of carnot eninge is always.

What can be calculated from the curve under PV graph.

Work done by the system is takn as

KE of molecules of an ideal gas at absolutely zero will be

No entrpy chagne is associated with

'R' is called

Pressure of a gas is directly proportional to average.

K = R/NA , Where k is called.

What one is not an isothermal change.

A device which covnerts thermal eergy into mechanical energy is called.

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Collision between gas molecules are perfectly

C