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प्रश्न
Is it possible to boil water at room temperature, say 30°C? If we touch a flask containing water boiling at this temperature, will it be hot?
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उत्तर
Yes, it is possible to boil water at 300C by reducing the external pressure. A liquid boils when its vapour pressure equals external pressure. By lowering the external pressure, it is possible to boil the liquid at low temperatures.
No, the flask containing water boiling at 300C will not be hot.
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संबंधित प्रश्न
Which of the following parameters is the same for molecules of all gases at a given temperature?
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(a) The kinetic energy of 1 mole
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(c) The number of molecules in 1 mole
(d) The number of molecules in 1 g
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