The Concept of Pressure NEET Questions

Physics - Kinetic Theory of Gases

The Concept of Pressure MCQ Questions


7.
Doubling the number of molecules in a container while keeping volume and temperature constant will:
A.
Double the pressure
B.
Halve the pressure
C.
Quadruple the pressure
D.
Have no effect on pressure
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ANSWER :
A. Double the pressure
8.
What is the relation between pressure and mean square speed of gas molecules according to the kinetic theory?
A.
P āˆ 1/vĀ²
B.
P āˆ mean square speed
C.
P āˆ v
D.
P āˆ 1/Ļ
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ANSWER :
B. P āˆ mean square speed
9.
An increase in altitude leads to

NEET - 2024

A.
Increase in atmospheric pressure
B.
Decrease in atmospheric pressure
C.
No change in pressure
D.
Increase in temperature
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ANSWER :
B. Decrease in atmospheric pressure
10.
If the volume of a gas is decreased at constant temperature, why does its pressure increase according to the kinetic theory?
A.
Molecules move faster
B.
Increased collision frequency with walls
C.
Increased molecular attraction
D.
Increased molecular size
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ANSWER :
B. Increased collision frequency with walls
11.
In the kinetic theory of gases, which assumption is crucial for deriving the expression for pressure?
A.
Significant molecular volume
B.
Perfectly elastic collisions
C.
Strong attractive forces
D.
Stationary molecules
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ANSWER :
B. Perfectly elastic collisions
12.
The pressure exerted by an ideal gas is independent of:
A.
The mass of gas molecules
B.
The number of gas molecules
C.
The temperature of the gas
D.
The volume of the container
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ANSWER :
A. The mass of gas molecules