States of Matter AFCAT Questions

AFCAT Chemistry

States of Matter MCQ Questions


1.
Which of the following is NOT a postulate of the kinetic theory of gases?
A.
The volume of gas molecules is negligible compared to the container volume
B.
Gas molecules are in constant random motion
C.
Collisions between gas molecules are perfectly elastic
D.
Gas molecules exert strong attractive forces on each other
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ANSWER :
D. Gas molecules exert strong attractive forces on each other
2.
The average kinetic energy of gas molecules is directly proportional to:
A.
Density
B.
Volume
C.
Absolute temperature
D.
Pressure
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ANSWER :
C. Absolute temperature
3.
At absolute zero (0 K), the kinetic energy of gas molecules is theoretically:
A.
Maximum
B.
Infinite
C.
Equal to RT
D.
Zero
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ANSWER :
D. Zero
4.
Which gas law states that at constant temperature, the pressure of a gas is inversely proportional to its volume?
A.
Charles's Law
B.
Avogadro's Law
C.
Boyle's Law
D.
Gay-Lussac's Law
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ANSWER :
C. Boyle's Law
5.
Charles's Law states that at constant pressure, volume of a gas is:
A.
Inversely proportional to absolute temperature
B.
Independent of temperature
C.
Proportional to the square of temperature
D.
Directly proportional to absolute temperature
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ANSWER :
D. Directly proportional to absolute temperature
6.
The ideal gas equation is represented as:
A.
PV = RT/n
B.
PVT = nR
C.
P/V = nRT
D.
PV = nRT
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ANSWER :
D. PV = nRT