Advertisements
Advertisements
Question
Define: Gas.
Advertisements
Solution
Giving two examples of type.
Gas : It is a state of matter which has only definite mass but no definite shape and volume. It takes up the shape of the container
e.g. – Carbon dioxide, oxygen, etc.
APPEARS IN
RELATED QUESTIONS
Write your observation and conclusion for the following:
Ice is kept at room temperature.
Why do solids, liquids and gases differ in their physical state?
Why do solids, liquids and gases differ in their physical states?
Name the phenomenon which causes the Formation of water vapour from water is
Give one difference between atoms and molecules.
Write whether the following statement is true or false.
A gas has no free surface.
Water, mercury and bromine are similar to each other, because three are ______.
Give two examples.
Liquid element
State the correct term from A, B, C, D, E or F in List II which represents the – change of state of matter or its relevant property from List I
| List I | List II |
| 1. Solid 'X' to a liquid 'Y' | A: Liquefaction |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Solidification |
| 5. The temperature at which 'Y' changes to 'Z' | E: Melting Point |
| F: Boiling point |
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
