Two vessels are filled with ideal gases A and B and are connected through a pipe of zero volume as shown in figure. The stop cock is opened and the gases are allowed to mix homogeneously and the temperature is kept constant. The partial pressures of A and B respectively (in atm) are
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For mixing of non-reacting gases at constant temperature, the new partial pressure is simply the initial pressure scaled by the volume fraction: \(P_{\text{new}} = P_{\text{old}} \times \frac{V_{\text{old}}}{V_{\text{total}}}\).
