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TS EAMCET · Chemistry · States of Matter

\(\mathrm{CH}_4\) diffuses two times faster than a gas \(X\). The number of molecules present in \(32 \mathrm{~g}\) of gas \(X\) is ( \(N\) is Avogadro number)

  1. A \(N\)
  2. B \(\frac{N}{2}\)
  3. C \(\frac{N}{4}\)
  4. D \(\frac{N}{16}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{N}{2}\)

Step-by-step Solution

Detailed explanation

From Graham's law of diffusion, \(\frac{r_{\mathrm{CH}_4}}{r_X}=\sqrt{\frac{M_X}{M_{\mathrm{CH}_4}}}\) (given, \(r_{\mathrm{CH}_4}=2 \cdot r_X\) ) \(2=\sqrt{\frac{M_X}{16}}\) \(M_X=16 \times 4=64\) Thus, the molecular mass of gas \(X\) is 64 . Number of molecules of gas \(X\) in…