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संबंधित प्रश्न
Give reasons:
Water pipes burst in severe winters.
On what basis and how will you determine whether air is saturated with vapour or not?
1 kg of ice at 0°C is mixed with 1 kg of steam at 100°C. What will be the composition of the system when thermal equilibrium is reached? Latent heat of fusion of ice = 3.36 × 103 J kg−1 and latent heat of vaporization of water = 2.26 × 106 J kg−1.
Explain the following
Fishes survive in ponds even when the atmospheric temperature is well below 0°C.
Density of water is maximum at :
What are land and sea breezes? Explain with the help of a labeled diagram.
The following diagrams illustrate three situations involving thermometers which are labeled A, Band C. In each situation the thermometers indicate different readings.
(i) What do you expect the approximate reading of the thermometer B and C would be? Give a reason for your answer.
(ii) How would the readings of A and B help you in calibrating a thermometer?
What will be the approximate temperature of water in the lake shown in the following diagram?
(i) At X, and
(ii) At Y?
