Physics questions
20027 published questions with worked solutions.
- The values of the specific heat of the gas during adiabatic change is
- If M is the molecular weight of a gas then the principal specific heat of a gas is given by
- The ratio of the densities of the two liquids is 2:3 and the ratio of their specific heats is 3:2. What will be the ratio of...
- One mole of an ideal gas requires 135 J of heat to raise its temperature by 15 K when heated at constant pressure. If the same...
- The internal latent heat is
- The internal energy of an ideal gas depends on
- If the pressure of the surroundings is increased, then the latent heat of steam
- The snow on the mountains does not melt all at once when it is heated by the sun because it
- Which one of the following statements is NOT true about the evaporation process?
- During melting process, the heat given to a body is utilised in
- Melting point of ice
- Internal latent heat is a part of latent heat required to change the state of the substance
- A monoatomic gas expands at constant pressure on heating. The percentage of heat supplied that increases the internal energy of...
- If 2 kg of steam at 100^ C condenses into water at 40^ C the energy evolved in calories is (L=540 cal/gm , s=1 cal ,gm^ -1 ,^ C^...
- When 1 kg of ice melts at 0^ C , its volume decreases by 10%. Latent heat of ice is 80 kcal/kg. Internal latent heat L_i of ice is
- When the temperature of an enclosed gas of mass 10 gm is raised by 60^ C , the gas expands by 2.1 litre against atmospheric...
- A gas receives an amount of heat, equal to 110 joules and performs 40 joules work. The change in the internal energy of the gas is
- Find the change in the internal energy of a system, when it absorbs 2 kcal of heat and at the same time does 500 J of work.
- The S.I. unit of latent heat is :
- The internal latent heat of ice will be :