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प्रश्न
Explain the term boiling ?
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उत्तर
Boiling : The change from liquid to gaseous phase on heating at a constant temperature is called boiling.
संबंधित प्रश्न
A liquid X has the maximum specific heat capacity and is used as a coolant in Car Radiators. Name the liquid X.
During the phase change does the average kinetic energy of the molecules of the substance increase?
Ice cream appears colder to the mouth than water at 0℃. Give reason.
It is generally cold after a hail-storm then during and before the hail storm. Give reason.
Define the term 'specific heat capacity' and state its unit.
What change in heat energy occurs when lead at its melting point
solidifies without change in the temperature?
Specific heat capacity of a substance A is 3.8 J g-1 K-1 and of substance B is 0.4 J g-1 k-1. Which substance is a good conductor of heat? How did you arrive at your conclusion?
Decide the unit for specific heat capacity.
Explain how heat capacity of a solid can be determined by the method of mixture.
Numerical Problem.
How much heat energy is required to change 2 kg of ice at 0°C into water at 20°C? (Specific latent heat of fusion of water = 3,34,000 J/kg, Specific heat capacity of water = 4200 JKg–1K–1).
