The Concept of Pressure NEET Questions

Physics - Kinetic Theory of Gases

The Concept of Pressure MCQ Questions


13.
Why does the pressure of a gas increase when its temperature increases at constant volume?
A.
Molecules decrease in size
B.
More energetic collisions with walls
C.
Increased number of molecules
D.
Molecules move in curved paths
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ANSWER :
B. More energetic collisions with walls
14.
What type of collisions do gas molecules exhibit with the container walls according to the kinetic theory?
A.
Partially elastic
B.
Perfectly elastic
C.
Perfectly inelastic
D.
Dependent on gas type
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ANSWER :
B. Perfectly elastic
15.
Atmospheric pressure is measured using

NEET - 2023

A.
Barometer
B.
Manometer
C.
Thermometer
D.
Hygrometer
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ANSWER :
A. Barometer
16.
The pressure of a gas is proportional to the mean square speed of its molecules because:
A.
Faster molecules have lower momentum
B.
Increased frequency of collisions
C.
Volume of the gas increases with speed
D.
Increased intermolecular forces
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ANSWER :
B. Increased frequency of collisions
17.
At constant temperature, increasing the volume of a gas will:
A.
Increase the pressure
B.
Decrease the pressure
C.
Not affect the pressure
D.
Double the pressure
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ANSWER :
B. Decrease the pressure
18.
The kinetic theory explains that the pressure of a gas is due to:
A.
Potential energy of molecules
B.
Kinetic energy of molecules
C.
Thermal energy of the container
D.
Chemical energy of molecules
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ANSWER :
B. Kinetic energy of molecules