Q. According to the Kinetic Molecular Theory, which of the following is NOT a postulate?
-
A.
Gas particles are in constant random motion.
-
B.
Gas particles occupy a definite volume.
-
C.
Collisions between gas particles are elastic.
-
D.
The average kinetic energy is proportional to temperature.
Solution
Gas particles do not occupy a definite volume; they fill the container they are in.
Correct Answer:
B
— Gas particles occupy a definite volume.
Learn More →
Q. In which state of matter do particles have the least kinetic energy?
-
A.
Solid
-
B.
Liquid
-
C.
Gas
-
D.
Plasma
Solution
In solids, particles are closely packed and vibrate in fixed positions, resulting in the least kinetic energy.
Correct Answer:
A
— Solid
Learn More →
Q. What happens to the volume of a gas when the temperature is increased at constant pressure?
-
A.
It decreases
-
B.
It remains the same
-
C.
It increases
-
D.
It becomes zero
Solution
According to Charles's Law, the volume of a gas increases with an increase in temperature at constant pressure.
Correct Answer:
C
— It increases
Learn More →
Q. What is the primary assumption of the kinetic molecular theory of gases?
-
A.
Gas particles are in constant motion
-
B.
Gas particles attract each other
-
C.
Gas particles occupy a fixed volume
-
D.
Gas particles have negligible mass
Solution
The kinetic molecular theory states that gas particles are in constant, random motion, which explains gas behavior.
Correct Answer:
A
— Gas particles are in constant motion
Learn More →
Q. Which gas law combines Boyle's, Charles's, and Avogadro's laws?
-
A.
Dalton's Law
-
B.
Ideal Gas Law
-
C.
Graham's Law
-
D.
Henry's Law
Solution
The Ideal Gas Law (PV = nRT) combines Boyle's, Charles's, and Avogadro's laws into one equation.
Correct Answer:
B
— Ideal Gas Law
Learn More →
Q. Which of the following statements is true about ideal gases?
-
A.
They have no volume.
-
B.
They have strong intermolecular forces.
-
C.
They behave according to the Ideal Gas Law at all conditions.
-
D.
They can be liquefied at high temperatures.
Solution
Ideal gases are considered to have no volume and do not exhibit intermolecular forces.
Correct Answer:
A
— They have no volume.
Learn More →
Showing 1 to 6 of 6 (1 Pages)
