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प्रश्न
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free surfaces.
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उत्तर
| Solids | They have any number (of free surfaces) |
| Liquid | They have one free surface |
| Gases | They have no free surfaces |
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संबंधित प्रश्न
Classify the following into solids, liquids and gases.
Oxygen, milk, common salt, wax, stone, water vapour, carbon-dioxide, sugar, mercury, coal, blood, butter, copper, coconut oil, kerosene.
Give reason:
When an empty gas jar is inverted over a gas jar containing a coloured gas, the gas also spreads into the empty jar.
Write whether the following statement is true or false.
All solids, on heating, first change to the liquid and then to the gaseous state always.
Name the phenomenon which cause the following change:
Conversion of water into steam.
The state of matter which has no definite shape or volume is called
- solid
- liquid
- gas
- water
Fill in the blank.
Water is a matter because it has mass and occupies _______
In which of the following conditions, the distance between the molecules of hydrogen gas would increase?
- increasing pressure on hydrogen contained in a closed container
- some hydrogen gas leaking out of the container
- increasing the volume of the container of hydrogen gas
- adding more hydrogen gas to the container without increasing the volume of the container
A measuring cylinder is filled with water to a particular mark. A piece of solid is immersed inside the measuring cylinder. State why the level of water in the measuring cylinder will rise up. If the solid is removed, what will be the new level of the water in the measuring cylinder? Give a reason for your answer.
Give a reason why –
Liquids have a definite volume but no definite shape.
The Cow and Birds are nonliving things.
