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प्रश्न
Name one common substance which can be easily changed from one state to another by heating or cooling.
उत्तर
Water can be easily changed from one state to another by heating or cooling.
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संबंधित प्रश्न
Convert the following temperature to the celsius scale.
293 K
What do you understand by the change of phase of a substance?
The boiling point of alcohol is 78° C. What is this temperature on Kelvin scale ?
What is meant by saying that the latent heat of fusion of ice is 3.34 × 105 J/kg ?
What is meant by saying that the latent heat of vaporisation of water is 22.5 × 105 J/kg ?
Define 'melting point' of a substance ? What is the melting point of ice
Define the following term Melting.
Define Intermodular space
Name the phenomenon which causes the following changes:
Formation of water vapour from water
State which of the three states of matter Le. solids, liquids or gases – have
(a) No definite volume
(b) A definite shape
(c) High density
(d) No free surfaces
(e) Particles – which diffuse very easily.
