Advertisements
Advertisements
प्रश्न
Write two advantages of high specific heat capacity of water.
Advertisements
उत्तर
(i) Water is used as an effective coolant in radiator of a car.
(ii) Hot water bottles are used for fomentation.
संबंधित प्रश्न
During the phase change does the average kinetic energy of the molecules of the substance increase?
The temperature of 170 g of water at 50°C is lowered to 5°C by adding a certain amount of ice to it. Find the mass of ice added.
Given: Specific heat capacity of water = 4200 J kg-1 °C-1 and specific latent heat of ice = 336000 J kg-1.
A burner raises the temperature of 360 g of water from 40°C to 100°C in 5 minutes. Calculate the rate of heat supplied by the burner.
Explain, why temperature in hot summer, falls sharply after a sharp shower?
Why are athletes advised to put on extra clothes after competing on event?
The temperature of a lead piece of mass 400 g rises from 20°C to 50°C when 1560 J of heat is supplied to it. Calculate Specific heat capacity of lead.
All metals have the same specific heat capacity.
50 g of copper is heated to increase its temperature by 10° C. If the same quantity of heat is given to 5 g water, the rise in its temperature is [Specific heat of copper = 420 joule-kg-1 °C-1 , specific heat of water = 4200 joule-kg-I °C-1]
A 0.2 kg metal at 150°C is placed in a copper calorimeter (water equivalent 0.025 kg) with 150 cm³ water at 27°C. Final temperature is 40°C. Find the specific heat of the metal.
