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Gaseous State Two Marks Questions

11th Standard

    Reg.No. :


Time : 00:45:00 Hrs
Total Marks : 30
    15 x 2 = 30
  1. Name two items that can serve as a model for Gay Lusaac' law and explain.

  2. Give the mathematical expression that relates gas volume and moles. Describe in words what the mathematical expression means.

  3. Can a Vanderwaals gas with a=0 be liquefied? explain.

  4. Suppose there is a tiny sticky area on the wall of a container of gas. Molecules hitting this area stick there permanently. Is the pressure greater or less than on the ordinary area of walls?

  5. Distinguish between diffusion and effusion.

  6. Aerosol cans carry clear warning of heating of the can. Why?

  7. Why do astronauts have to wear protective suits when they are on the surface of moon?

  8. When ammonia combines with HCI, NH4CI is formed as white dense fumes. Why do more fumes appear near HCI?

  9. Why are the airplane cabins artificially pressurized?

  10. Define the terms isotherm, isobar and isochore.

  11. Defind pressure. Give its units.

  12. On what basis do you classify gases into permanent and temporary gases? Explain these types with example.

  13. Derive the units of the vanderwaal's constants.

  14. Imagine the molecular collisions to the gases were inelastic. What would have happened?

  15. Define standard atmospheric pressure.


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