Question

Explain How intermolecules forces defines rigidy of a substance?

Answer 1

Hey mate here's your answer..
☺☺

Strong intermolecules forces results to more heat energy in breakdown of forces results between particles, Which resemble to a strong bond between particles.This shows high rigidity (Hardness). of a substance..

Hope it helps you..☺✌

Answer 2

Intermolecular forces are forces are forces that holds molecules together
Now ur question is how they define regidity so answer is
There are three types of intermolecular forces
1▪ Wander val firces
2▪ hydrogen bonding
3▪ dipole dipole interaction

Now u must be familiar of their strengths
Hydrogrn bonding is stronger then dipole dipole interaction while wander waal forces are very weak forces found just in non polar molecules .

If a molecule is bound by hydrogen bonding it will be more rigid as compared to a molecule bound by dipole dipole force .
And as i said wander waal are verrrry weak forces so a molecule bound by waander waal forces (non polar molecule) will be less rigid then that of a molecule having hydrogen or dipole dipole interaction