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प्रश्न
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?
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उत्तर
(i) The temperature of steam and boiling water Is equal so the reading of thermometer is the same. But due to the addition of salt boiling point of water elevates so the reading of thermometer would be slightly higher than the boiling point of water i.e 100° C.
(ii) The addition of salt boiling point of water increases so thermometer has to measure temperature for a wider range and thus it helps in the calibration of the thermometer.
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संबंधित प्रश्न
Give reason of Water pipes burst in severe winter.
Explain the following:
How can you relate the formation of water droplets on the outer surface of a bottle taken out of refrigerator with formation of dew?
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.
Density of water is maximum at :
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In cold regions, in winter the pipes for water supply break.
Observe the following diagram and write the answers to the questions given below.
- Which process does the graph represent?
- What is the range of temperature responsible for the behaviour?
