Define range of molecular attraction and sphere of influence.
Answers
Answer:
Range of molecular attraction can be defined as the maximum distance upto which a molecule can exerts it's attractive force over other molecules.And the spherical volume around which the effect of attractive forces can be felt is called "Sphere of influence" .
Answer:
(1) Range of nmolecular attraction or molecular range :
Range of molecular attrad ion or molecular range is defined as the maximum distance between two molecules up to which the intermolecular force of attraction is appreciable.
[Note: The intermolecular force is a short range force, ie., it is effective overa very short range-about 10^-9 m. Beyond this distance, the force is negligible. The intermolecular force does not obey inverse square law.]
2) Sphere of infuence :
The sphere of influence of a molecule is defined as an imaginary sphere with the molecule as the centre and radius equal to the range of molecular attraction.
[Note: All molecules lying within the sphere of infuence of a molecule are attracted by (as well as attract) the molecule at the centre. For molecules which lie outside this sphere, the intermolecular force due to the molecule at the centre is negligible.]