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प्रश्न
State the term which refers to the conversion of a substance on heating from.
- solid-state to liquid state
- liquid state to vapour state
- vapour state to liquid state
- liquid state to solid-state.
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उत्तर
The terms which refer to the conversion of a substance are:
- Melting
- Vaporisation
- Liquefaction
- Solidification
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संबंधित प्रश्न
What are the two conditions for the interconversion of states of matter ?
Give reason for the following.
Pure substances have fixed melting or boiling points.
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
Name the phenomenon which cause the following change:
Conversion of ice into water.
Fill in the blank
Molecules in a ________ are packed very closely.
State two characteristics of matter demonstrated by diffusion.
Which of the following statement is incorrect?
Bromine particles are almost twice as heavy as chlorine particles. Which gas will diffuse faster; bromine (vapour) or chlorine? Explain your answer.
When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.
- What could particles X be ?
- Name the gas (or mixture of gases) Y.
- What is the phenomenon exhibited by particles X known as ?
- What is causing the movement of particles X ?
- What conclusion does the existence of this phenomenon give us about the nature of matter ?
Select the correct answer from A, B, C, D & E for the statement given below:
The state of matter, where the inter-particle attraction between particles is maximum.
