Write a note on the molecular structure of liquids. [5 MARKS]
Write a note on the molecular structure of liquids. [5 MARKS]
Explanation: 0.5 Mark each for (ii), (v) and (vi)
. 1.5 Marks for (i)
1 Mark each for the rest
(i) The intermolecular spaces are somewhat large and intermolecular forces fairly small as compared to the solids.
(ii) The molecules of the liquid have a large kinetic energy.
(iii) It is on account of the larger kinetic energy and large intermolecular spaces that the molecules can interchange their position.
(iv) It is on account of this reason that liquids take the shape of containing vessel and flow from higher to lower level.
(v) The intermolecular forces in the liquids are sufficient to hold the molecules together and therefore, they have fixed volume.
(vi) They are incompressible.
Explanation: 0.5 Mark each for (ii), (v) and (vi)
. 1.5 Marks for (i)
1 Mark each for the rest
(i) The intermolecular spaces are somewhat large and intermolecular forces fairly small as compared to the solids.
(ii) The molecules of the liquid have a large kinetic energy.
(iii) It is on account of the larger kinetic energy and large intermolecular spaces that the molecules can interchange their position.
(iv) It is on account of this reason that liquids take the shape of containing vessel and flow from higher to lower level.
(v) The intermolecular forces in the liquids are sufficient to hold the molecules together and therefore, they have fixed volume.
(vi) They are incompressible.
