Question

B. Fill in the blanks.
with increase in
1. The force of attraction between molecules of a substance is called_____
2. The intermolecular force of attraction between the molecules____ with increase in temprature.
3. In solids, intermolecular spaces are very____
4. The molecules of a gas are____ packed
5. During melting of a solid, its
_____ remains constant.
6. The process of water changing into its vapour at 50°C is called______​

Answer 1

$\LARGE{ \underline{\underline{\sf{ANSWER:}}}}$

1. The force of attraction between molecules of a substance is called ${ \underline{\underline{\sf{Intermolecular \:Force}}}}$ .

2. The intermolecular force of attraction between the molecules ${ \underline{\underline{\sf{Decrease}}}}$ with increase in temprature.

3. In solids, intermolecular spaces are very ${ \underline{\underline{\sf{very \:less}}}}$ .

4. The molecules of a gas ${ \underline{\underline{\sf{Loosely}}}}$are packed .

5. During melting of a solid, its ${ \underline{\underline{\sf{temperature}}}}$ remains constant.

6. The process of water changing into its vapour at 50°C is called ${ \underline{\underline{\sf{evaporation}}}}$

$\LARGE{ \underline{\underline{\sf{More \:Information}}}}$

Intermolecular force the attractive and repulsive forces that arise between the molecules of a substance. These forces mediate the interactions between individual molecules of a substance. Intermolecular forces are mainly responsible for the physical characteristics of the substance. Intermolecular forces are responsible for the condensed states of matter. The particles making up solids and liquids are held together by intermolecular forces and these forces affect a number of the physical properties of mater in these two states.

${ \underline{\underline{\sf{TYPES}}}}$

$\sf\green{Dipole - Dipole \:Interactions}$

Dipole-dipole interactions are attractive forces among polar molecules.

$\sf\red{Ion-Dipole \:Interactions}$

These interactions are similar to dipole-dipole interactions except for the fact that they arise between ions and polar molecules.

$\sf\blue{Here \:all \:we \:done :)}$