Question

The rapid movement of gases molecules can be explained because gases have blank size and exert blank attraction for other gas particles.
a. small, great
b. large, great
c. large, little
d. small, little

Answer 1

Answer:

            Option-D  ( The rapid movement of gases molecules can be explained because gases have small size and exert little attraction for other gas particles. )

Explanation:

                    Kinetic Molecular Theory proposed by Bernoulli well explains the physical behavior of gases. The main postulates of this theory are;

A) Gases are made up of small particles called molecules. The size of these molecules is very small as compared to the distance between molecules, therefore the actual volume of molecules is taken negligible as compared to volume occupied by them.

B) All the gas molecules present in a container behaves independently because they have no force of interactions between them Hence, the attractive forces are taken negligible or too little.  

C) Gas molecules have greater kinetic energy as compared to solids and liquids.

D) The gas molecules move randomly. They collide with each other and with the walls of the container which causes pressure.