Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
Although both ice cubes and iced water are at 0°C but ice cubes cool more quickly because each gram of ice requires additional 80 calories of heat to get converted into water at the same temperature, i.e., at 0°C. Hence, the cooling capacity of ice cubes is more than that of iced water.
APPEARS IN
संबंधित प्रश्न
During the phase change does the average kinetic energy of the molecules of the substance increase?
Water is used in hot water bottles for fomentation. Give a reason.
What change in heat energy occurs when lead at its melting point
solidifies without change in the temperature?
Define heat capacity.
What is heat? What is the S. I. unit of heat?
Write two advantages of high specific heat capacity of water.
Solve the following problem.
What is the specific heat of metal if 50 cal of heat is needed to raise 6 kg of the metal from 20°C to 62 °C?
A metal ball of heat capacity 50J/°C loses 2000 J of heat. By how much will its temperature fall?
