
Define:
(a) Intermolecular force of attraction
(b) Intermolecular space
Answer
480.6k+ views
Hint: Intermolecular forces and intermolecular spaces are responsible for most of the physical and chemical properties of matter. As we know, matter in the surrounding is made up of many same or different kinds of molecules.
Complete Solution :
Let us study both the points one by one:
(a) Intermolecular force of attraction-
- Intermolecular forces also written as IMF; are the forces arising in between the molecules of a substance. Intermolecular force is the force of attraction between the molecules of matter.
- Atoms like hydrogen, oxygen, nitrogen, etc are formed when a required number of electrons, protons and neutrons combine together.
- When two atoms of hydrogen and one atom of oxygen is combined together, they form a water molecule. Thus, a molecule is formed when many atoms combine together.
- When many molecules combine together, they form a compound. For example, when many molecules of water are combined together, we get liquid water.
Therefore, the matter around us is made up of many molecules packed together. States of matter are also in fact classified on the basis of Intermolecular force of attraction between the molecules.
(b) Intermolecular space-
- The space present in between two molecules or atoms is called intermolecular space. If the intermolecular force in between atoms or molecules is strong then the intermolecular space is less and vice versa.
The molecules of solids are tightly packed because of strong intermolecular forces.
-Solids have the strongest intermolecular force of attraction between its molecules and less intermolecular space.
-Liquids have moderate intermolecular force of attraction between its molecules and moderate intermolecular space.
-Gases have less intermolecular force of attraction between its molecules and more intermolecular space.
Note: Students may get confused in between intermolecular and intramolecular forces of attraction.
Do note that intermolecular forces of attraction are the forces of attraction between the molecules of a compound whereas, intramolecular forces of attraction are the forces of attraction between atoms of a molecule.
Complete Solution :
Let us study both the points one by one:
(a) Intermolecular force of attraction-
- Intermolecular forces also written as IMF; are the forces arising in between the molecules of a substance. Intermolecular force is the force of attraction between the molecules of matter.
- Atoms like hydrogen, oxygen, nitrogen, etc are formed when a required number of electrons, protons and neutrons combine together.
- When two atoms of hydrogen and one atom of oxygen is combined together, they form a water molecule. Thus, a molecule is formed when many atoms combine together.
- When many molecules combine together, they form a compound. For example, when many molecules of water are combined together, we get liquid water.
Therefore, the matter around us is made up of many molecules packed together. States of matter are also in fact classified on the basis of Intermolecular force of attraction between the molecules.
(b) Intermolecular space-
- The space present in between two molecules or atoms is called intermolecular space. If the intermolecular force in between atoms or molecules is strong then the intermolecular space is less and vice versa.
The molecules of solids are tightly packed because of strong intermolecular forces.
-Solids have the strongest intermolecular force of attraction between its molecules and less intermolecular space.
-Liquids have moderate intermolecular force of attraction between its molecules and moderate intermolecular space.
-Gases have less intermolecular force of attraction between its molecules and more intermolecular space.
Note: Students may get confused in between intermolecular and intramolecular forces of attraction.
Do note that intermolecular forces of attraction are the forces of attraction between the molecules of a compound whereas, intramolecular forces of attraction are the forces of attraction between atoms of a molecule.
Latest Vedantu courses for you
Grade 11 Science PCM | CBSE | SCHOOL | English
CBSE (2025-26)
School Full course for CBSE students
₹41,848 per year
Recently Updated Pages
Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Business Studies: Engaging Questions & Answers for Success

Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 English: Engaging Questions & Answers for Success

Master Class 11 Computer Science: Engaging Questions & Answers for Success

Master Class 11 Maths: Engaging Questions & Answers for Success

Trending doubts
State and prove Bernoullis theorem class 11 physics CBSE

What are Quantum numbers Explain the quantum number class 11 chemistry CBSE

Write the differences between monocot plants and dicot class 11 biology CBSE

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

State the laws of reflection of light

One Metric ton is equal to kg A 10000 B 1000 C 100 class 11 physics CBSE
