Thermal Propert...

A metallic ball and highly stretched spring are made of the same material and have the same mass. They are heated so that they melt, the latent heat required

A closed bottle containing water at 30°C is carried to the moon in a space-ship. If it is placed on the surface of the moon, what will happen to the water as soon as the lid is opened

The thermal capacity of 40 g of aluminium (specific heat = 0.2 cal/g°/C) is

Two rigid boxes containing different ideal gases are placed on a table. Box A contains one mole of nitrogen at temperature T₀, while Box B contains one mole of helium at temperature (7/3) T₀. The boxes are then put into thermal contact with each other and heat flows between them until the gases reach a common final temperature (Ignore the heat capacity of boxes). Then, the final temperature of the gases, T_f, in terms of T₀ is

A liquid of mass M and specific heat S is at a temperature 2 t. If another liquid of thermal capacity 1.5 times, at a temperature of t/3 is added to it, the

0.93 watt-hour of energy is supplied to a block of ice weighing 10 g. It is found that

The weight of a person is 60 kg. If he gets 10⁵ calories heat through food and the efficiency of his body is 28%, then upto how much height he can climb (approximately)

Hailstone at 0°C falls from a height of 1 km on an insulating surface converting whole of its kinetic energy into heat. What part of it will melt (g = 10 m/s²)

Of two masses of 5 kg each falling from height of 10 m, by which 2kg water is stirred. The rise in temperature of water will be

A lead ball moving with a velocity V strikes a wall and stops. If 50% of its energy is converted into heat, then what will be the increase in temperature (Specific heat of lead is S)