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TS EAMCET · Chemistry · States of Matter

Equal amounts of two gases of molecular weights 4 and 40 are mixed. The pressure of the mixture is 1.1 atm. What will be the partial pressure of the lighter gas in the mixture?

  1. A \(0.25 \mathrm{~atm}\)
  2. B \(0.5 \mathrm{~atm}\)
  3. C \(0.8 \mathrm{~atm}\)
  4. D \(1 \mathrm{~atm}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(1 \mathrm{~atm}\)

Step-by-step Solution

Detailed explanation

Given, pressure of mixture \(\left(p_0\right)=1.1 \mathrm{~atm}\) Molecular weight of two gases \(=4\) and 40 . \(\therefore\) Number of moles of lighter gas \(=m / 4\) where, \(m=\) mass of gases and, number of moles of heavier gas \(=\frac{m}{40}\) Thus, total number of moles…