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Liquid State

6 questions · Chemistry · IIT JAM
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Liquid State

6 questions · Chemistry · IIT JAM

  1. The figures (I, II, III) given below schematically represent variation of surface tension of three different aqueous solutions with increasing concentration of each of the solutes (surfactant, sodium chloride, and n-propanol). Match the… Includes diagram2025 · Q10 · MCQ
  2. The diagram that best describes the variation of viscosity (η) of water with temperature at 1 atm is2023 · Q5 · MCQ
  3. When a glass capillary tube is dipped in water, a 1.0 cm rise in the water level is observed at 18 °C. The internal radius of the capillary is ​ cm.2023 · Q53 · Numerical
  4. Capillary W contains water and capillary M contains mercury. The contact angles between the capillary wall and the edge of the meniscus at the air-liquid interface in W and M are θW​ and θM​, respectively. The contact angles…2022 · Q26 · MCQ
  5. The surface tension (γ) of a solution, prepared by mixing 0.02 mol of an organic acid in 1 L of pure water, is represented as γ∗−γ=Alog(1+Bc) γ∗ is the surface tension of pure water, A=0.03 N m−1…2021 · Q54 · Numerical
  6. A film of stearic acid partially covers the water surface in a container. The work needed to decrease this coverage by 1 cm 2 is 25.0×10−7 J. The surface tension (in N/m) of the film is ​ (Round off…2020 · Q44 · Numerical