Advertisements
Advertisements
Question
Assertion (A): Three states of matter are the result of balance between intermolecular forces and thermal energy of the molecules
Reason (R): Intermolecular forces tend to keep the molecules together but thermal energy of molecules tends to keep them apart.
Options
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Solution
Both A and R are true and R is the correct explanation of A.
Explanation:
Sates of matter of a substance depend on the intermolecular forces.
\[\ce{->[Solid > Liquid > Gas][Decreasing intermolecular force]}\]
Intermolecular forces keep the molecules together while thermal energy of molecules tends to keep them apar
APPEARS IN
RELATED QUESTIONS
A person living in Shimla observed that cooking food without using pressure cooker takes more time. The reason for this observation is that at high altitude:
Physical properties of ice, water and steam are very different. What is the chemical composition of water in all the three states.
The behaviour of matter in different states is governed by various physical laws. According to you what are the factors that determine the state of matter?
Assertion (A): Liquids tend to have maximum number of molecules at their surface.
Reason (R): Small liquid drops have spherical shape.
