Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Heat and Thermodynamics question

2023 · 11 Apr · Shift 1 · Q50
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Heat and Thermodynamics
  5. /2023 · 11 Apr · Shift 1 · Q50

Heat and Thermodynamics question

2023 · 11 Apr · Shift 1 · Q50

JEE MainPhysicsHeat and ThermodynamicsMCQ+4 / −1
1 kg1 \mathrm{~kg}1 kg of water at 100∘C100^{\circ} \mathrm{C}100∘C is converted into steam at 100∘C100^{\circ} \mathrm{C}100∘C by boiling at atmospheric pressure. The volume of water changes from 1.00×10−3 m31.00 \times 10^{-3} \mathrm{~m}^{3}1.00×10−3 m3 as a liquid to 1.671 m31.671 \mathrm{~m}^{3}1.671 m3 as steam. The change in internal energy of the system during the process will be (Given latent heat of vaporisaiton =2257 kJ/kg=2257 \mathrm{~kJ} / \mathrm{kg}=2257 kJ/kg, Atmospheric pressure = 1×105 Pa)\left.1 \times 10^{5} \mathrm{~Pa}\right)1×105 Pa)
  1. A
    + 2090 kJ
  2. B
    −-− 2426 kJ
  3. C
    + 2476 kJ
  4. D
    −-− 2090 kJ
PreviousNext

More from Heat and Thermodynamics

  • On a temperature scale 'X', the boiling point of water is 65∘X and the freezing point is −15∘X. Assume that the X scale is linear. The equivalent temperature corresponding to −95∘X…2023 · MCQ
  • Three vessels of equal volume contain gases at the same temperature and pressure. The first vessel contains neon (monoatomic), the second contains chlorine (diatomic) and third contains uranium hexafloride (polyatomic). Arrange these on…2023 · MCQ
  • The Thermodynamic process, in which internal energy of the system remains constant is2023 · MCQ
  • The root mean square speed of molecules of nitrogen gas at 27∘C is approximately : (Given mass of a nitrogen molecule =4.6×10−26 kg and take Boltzmann constant kB​=1.4×10−23JK−1…2023 · MCQ
  • If the r. m.s speed of chlorine molecule is 490 m/s at 27∘C, the r. m. s speed of argon molecules at the same temperature will be (Atomic mass of argon =39.9u, molecular mass of…2023 · MCQ
  • The rms speed of oxygen molecule in a vessel at particular temperature is (1+x5​)21​v, where v is the average speed of the molecule. The value of x will be: ( Take π=722​)…2023 · MCQ
  • The initial pressure and volume of an ideal gas are P 0​ and V 0​. The final pressure of the gas when the gas is suddenly compressed to volume 4V0​​ will be : (Given γ = ratio of specific heats at constant pressure and…2023 · MCQ
  • The mean free path of molecules of a certain gas at STP is 1500 d, where d is the diameter of the gas molecules. While maintaining the standard pressure, the mean free path of the molecules at 373 K is…2023 · MCQ