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x L of N2 at STP contains 3 xx 10^(22) ...

x L of `N_2` at STP contains `3 xx 10^(22)` molecules. The number of molecules in x/2 L of ozone at STP will be

A

`3 xx 10^(22)`

B

`1.5 xx 10^(22)`

C

`1.5 xx 10^(21)`

D

`1.5 xx 10^(11)`

Text Solution

Verified by Experts

The correct Answer is:
B
Equal volume of gases contain equal number of molecules at STP.
` therefore ` Half volume `x/2` will contain half number of molecules. i.e.
` 1/2 xx 3 xx 10^(22) = 1.5 xx 10^(22)`
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