Calorimetry Questions

A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat during its fall. The value...

The amount of work done in converting 1 gm ice at -10o C into steam at 100o C will be : -

A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closed circulation system (as shown schematically in the figure), the water from the cooler is used to ...

Two large holes are cut in a metal sheet. If this is heated, distances AB and BC, (as shown)...

Steam at 100oC is passed into 20 g of water at 10oC. When water acquires a temperature of 80oC, the mass of water present will be: [Take specific heat of water = 1 cal g-1 oC-1 and latent heat of stea...

In summers when a man comes out of a cold water tank he feels a sensation of cold because

Steam at 100o C is passes into 1.1 kg of water contained in a calorimeter of water equivalent 0.02 kg at 15oC till the temperature of the calorimeter and its content rises to 80o C . The mass of the s...

A calorimeter of water equaivalent 5 × 10-3 kg. having water 25 × 10-3 kg. Then it takes 3 minutes to cool from 28oC to 21oC when it is filled by tarpeen oil 30 × 10-3 kg. Then it takes...

The thermal capacities of two bodies are in the ratio of 1:4. If the rates of loss of heat are equal for the two bodies under identical conditions of surroundings, then the ratio of rates of fall of t...

A bullet moving with velocity v collides against wall. consequently half of its kinetic energy is converted into heat. If the whole heat is acquired by the bullet, the rise in temperature will be : -...

The process of converting solid into directly gaseous state on being heated is called :-

The amount of heat required to convert 1 gm of ice at 0oC into steam at 100oC, is

The latent heat for vapourisation of 1 gm water is 536 cal. Its value in Joule/kg will be :-

50 gm. of ice at 0o C is mixed with 50 gm. of water at 100o C. The final temperature of mixture is : -

In a water fall the water falls from a height of 100 m. If the entire energy of water is converted into heat. The rise in temp. of water will be : -

A bottle is filled with water at 30o C on opening in at moon than :–

Water is used to cool the radiators of engines in cars because :

Two identical masses of 5 kg each fall on a wheel from a height of 10m. The wheel disturbs a mass of 2kg water, the rise in temperature of water will be :

If 10 gm ice at 0oC is mixed with 10 gm water at 20oC, the final temperature will be :-

20 gm of Ice at - 10oC added to 10 gm of water at 100oC. Than final temp. of the mixture is:-