PASSAGE 1: The molecules of a gas are free to move about in any direction. Because of large
intermolecular spaces, the gases are easily compressible. The kinetic energy of the molecules
of gases is maximum and they move about randomly at a high speed. The randomly moving
high speed molecules hit against the sides of containing vessel. The pressure exerted by any
gas is due to the force exerted by its molecules on the sides of containing vessel
1. A gas fills all the it is kept because space in a container in which it is kept because
(a) the gases have large intermolecular spaces
(b) the molecules are not free to move
(c) the randomly moving molecules hit against the walls of container
(d) the molecules have large intermolecular forces of attraction
2. When pressure is applied on a gas, it is converted to a liquid due to
(a) increase in intermolecular forces of attraction between the
particles
(b) increase in intermolecular distances between the particles
(c) decrease in intermolecular forces of attraction between the partides
(d) increase in kinetic energy of particles.
3. The force per unit area exerted by the particles of the gas on the walls of container is called
(a) atmospheric pressure
b) pressure of the gas
(c) kinetic energy of the gas
(d) density of the gas
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