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प्रश्न
Explain, why temperature in hot summer, falls sharply after a sharp shower?
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उत्तर
Water has the highest specific heat capacity of 4.2 Jg-1 °C-1. Thus, when there is a sharp shower, the water evaporates. In doing so, it absorbs a large amount of heat from surroundings, hence temperature falls sharply.
संबंधित प्रश्न
Specific heat capacity of substance A is 3.8 J g-1K-1 whereas the specific heat capacity of substance B is 0.4 J g-1 K-1
(i) Which of the two is a good conductor of heat?
(ii) How is one led to the above conclusion?
(iii) If substances A and B are liquids then which one would be more useful in car radiators?
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A substance is in the form of a solid at 0°C. The amount of heat added to this substance and the temperature of the substance are plotted on the following graph:
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(ii) Mass of the metal piece = M gm
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(v) Temperature of hot solid (metal piece) = t2 °C
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