Advertisements
Advertisements
प्रश्न
Under what conditions do solids, liquids and gases change their state.
Advertisements
उत्तर
Matter can change from one state to another on changing temperature and pressure.
APPEARS IN
संबंधित प्रश्न
Write your observation and conclusion for the following:
Ice is kept at room temperature.
Define: Liquid.
How a liquid changes into its gaseous state ? Explain ?
Give reason Pure substances have fixed melting or boiling point .
Write true or false for each statement. Rewrite the false statement correctly.
The intermolecular space in a gas is almost negligible.
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles move about very quickly.
One litre of water has 6.02 × 1026 molecules. Estimate the size of a molecule.
What do you mean by inter-molecular spacing?
Give one difference between atoms and molecules.
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
