Advertisements
Advertisements
Question
Give reason Pure substances have fixed melting or boiling point .
Short Note
Solution
Pure substances consists of only one kind of matter. All the particles of a pure substance are alike. It has a definite composition and similar properties. This is the reason that pure substances have fixed melting or boiling points.
shaalaa.com
Composition of Matter
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Give two examples for the following :
Substances which do not change their states.
The process by which a solid change into a liquid is called
What are the forces of cohesion and adhesion?
Define matter.
If an object weighs 6 kg on earth. What will be its weight on moon?
Name the smallest particle from which matter is made up.
Define the Atom.
Give reason :
A gas fills up the space available to it.
Match the following
| Column A | Column B |
| (a) Solids | (i) Can flow in all directions |
| (b) Sublimation | (ii) The temperature at which a liquid changes into its gaseous state. |
| (c) Boiling point | (iii) Any number of free surfaces. |
| (d) Gases | (iv) Gaps between particles. |
| (e) Intermolecular space | (v) Changes of state from solid to gas. |
Identify the odd term out and explain.
