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A cinema hall has equidistant rows 1 m a...

A cinema hall has equidistant rows `1 m` apart. The length of the cinema hall is `287 m` and it has `287` rows. From one side of the cinema hall, laughing gas `(N_(2)O)` is released and from the other side, weeping gas `(C_(6)H_(5)COCH_(2)Cl)` is released. In which rows, spectors will be laughing and weeping simultaneously?

Text Solution

Verified by Experts

Molar weight of `C_(8)H_(7)Ocl=8xx12+7xx1+16+35.5`
`=154.5 g`.
Molar weight of `N_(2)O=2xx14+16=44g`
According to Graham's law of diffusion,
`(r_(N_(2)O))/(r_(C_(8)H_(7)OCl))=sqrt((M_(C_(8)H_(7)OCl))/(M_(N_(2)O)))=sqrt((154.5)/(44))=sqrt(3.5)=1.87 : 1`
`d_(N_(2)O)=(1.87)/(2.87)xx287=187th` row from `N_(2)O` side
`d_(C_(8)H_(7)OCl)=(1.0)/(2.87)xx287=100th` row from weeping gas side.
Therefore, the spectator from the side of `N_(2)O` in the `187th row` will be laughing and weeping simultaneously. Alternatively, the spectator from the side of weeping gas in the `100th` row will be laughing and weeping simultaneously.
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CENGAGE CHEMISTRY-STATES OF MATTER-Exercises (Ture False)
  1. A cinema hall has equidistant rows 1 m apart. The length of the cinema...

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  2. In the van der Waals equation (P + (n^(2)a)/(V^(2)))(V - nb) = nRT ...

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  3. Kinetic energy of a molecule is zero at 0^(@)C

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  4. A gas in a closed container will exert much higher pressure due to gra...

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  5. The graph between PV vs P at constant temperature is linear parallel t...

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  6. Real gases show deviation from ideal behaviour at low temperature and ...

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  7. In the microscopic model of the gas, all the moleculer are supposed to...

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  8. For real gases, at high temperature Z = 0 small value of a means gas...

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  9. Small value of a means, gas can be easily liqueifed.

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  10. Rate of diffusion is directly proportional to the square root of molec...

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  11. For ideal gases, Z = 1 at all temperature and pressure.

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  12. According to charles's law,

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  13. The pressure of moist gas is higher than pressure of dry gas.

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  14. Gases do not occupy volume and do not have force of attraction.

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  15. The van der Waal equation of gas is (P + (n^(2)a)/(V^(2))) (V - nb)...

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  16. Surface tension and surface energy have different dimensions.

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  17. The plot of PV vs P at particular temperature is called isovbar.

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  18. Equal volume of all gases always contains equal number of moles.

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  19. A gas with a = 0 cannot be liquified.

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  20. The van der waals constants have same values for all the gases.

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  21. All the molecules in a given sample of gas move with same speed.

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