The kinetic theory of gases explains the behaviour of gases on the basis of motion of their molecules.
According to this theory, gases consist of a large number of tiny particles called molecules, which are in continuous random motion.
Gas molecules move with different velocities and directions. The average effect of this motion gives rise to macroscopic properties like pressure and temperature.
Q1. Kinetic theory of gases is based on: A) Static nature of molecules B) Random motion of molecules C) Attractive forces between molecules D) Large size of molecules Answer: B Q2. Gas molecules are in: A) Rest B) Circular motion C) Vibratory motion D) Continuous random motion Answer: D Q3. Pressure of a gas is due to: A) Weight of gas B) Intermolecular attraction C) Collision of molecules with container walls D) Size of molecules Answer: C Q4. Collisions between gas molecules are: A) Inelastic B) Perfectly elastic C) Partially elastic D) Non-elastic Answer: B Q5. According to kinetic theory, intermolecular forces between gas molecules are: A) Very strong B) Attractive C) Repulsive D) Negligible Answer: D
Explains behaviour of gases based on motion of molecules.
Gas molecules are in continuous random motion.
Pressure is due to collision of molecules with container walls.
Collisions between molecules are perfectly elastic.
Direct MCQs are asked on assumptions of kinetic theory and origin of gas pressure.
