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Gas laws from KTG

You are given...

Question

You are given sample of $1 {cm}^{3}$ of $H_{2}$ , $1 {cm}^{3}$ of $O_{2}$ and $1 {cm}^{3}$ of $C l_{2}$ which are at STP. The sample which has maximum number of molecules is

H_{2}

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O_{2}

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C l_{2}

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All have same value

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Solution

The correct option is D All have same value
As, $P V = n R T$
If $P, V and T$ are same for different gases, then n, the number of molecules will also be same for different gases.
Hence, $(d)$ is the correct answer.

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1 {cm}^{3}

H_{2}

1 {cm}^{3}

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1 {cm}^{3}

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\times 10^{23}

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