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N2 gas is present in one litre flask at ...

`N_2` gas is present in one litre flask at a pressure of `7.6 xx 10^(-10)`mm of Hg. The number of `N_2` gas molecules in the flask at `0^@C` are 

A

`2.68 xx 10^9 `

B

`2.68 xx 10^(10)`

C

`1.34 xx 10^(28)`

D

`2.68 xx 10^(22)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-STATES OF MATTER-OBJECTIVE EXERCISE -2
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  13. A five litre flask contains 3.5gm of N2 3g of H2 and 8g of O2 at 27^@C...

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  14. If 10 gm of a gas at atmospheric pressure is cooled from 273°C to 0°C ...

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