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The temperature of an open room of volum...

The temperature of an open room of volume `30 m^(3)` increases from `17^(@)C to 27^(@)C` due to sunshine. The atmospheric pressure in the room remains `1 xx 10^(5) Pa`. If `n_(i) and n_(f)` are the number of molecules in the room before and after heating then `n_(f)` and `n_(i)` will be

A

`-1.61xx10^23`

B

`1.38xx10^23`

C

`2.5xx10^25`

D

`-2.5xx10^25`

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SL ARORA-Kinetic Theory of gases-Example
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  2. A narrow uniform glass tube 80 cm long and open at both ends is half i...

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  3. A gas at 27^@ C in a cylinder has a volume of 4 litre and pressure 100...

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  4. A gas at 27^@ C in a cylinder has a volume of 4 litre and pressure 100...

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  5. As an air bubble rises from the bottom of a lake to the surface, its v...

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  6. Using the ideal gas equation, determine the value of gas constant R. G...

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  7. A balloon partially filled with helium has a volume of 30 m^3, at the ...

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  8. A vessel contains two non-reactive gases neon (monoatomic) and oxygen ...

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  9. A vessel contains two non-reactive gases neon (monoatomic) and oxygen ...

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  10. A closed container of volume 0.02m^(3) contains a mixture of neon and ...

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  11. Calculate the r.m.s. velocity of air molecules at S.T.P. Given density...

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  12. A vessel is filled with a gas at a pressure of 76 cm of mercury at a c...

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  13. Calculate the kinetic energy of one mole of argon at 127^(@)C. Given,B...

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  14. Calculate the KE per molecule and also rms velocity of a gas at 127^(@...

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  15. Calculate the number of molecule in 2 xx 10^(-6)m^(3) of a perfect gas...

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  16. Calculate the root mean square speed of one gram molecule of hydrogen ...

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  17. (a) Calculate (i) root-mean-square speed and (ii) the mean energy of 1...

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  18. Calculate Boltzmann's constent.

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  19. At what temperature will the average velocity of oxygen molecules be s...

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  20. A vessel A contains hydrogen and another vessel B whose volume is twic...

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  21. A vessel A contains hydrogen and another vessel B whose volume is twic...

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