A vessel is filled with a mixture of oxygen and nitrogen. At what ratio of partial pressures will th — States of Matter and Gaseous State Chemistry Question
Question
A vessel is filled with a mixture of oxygen and nitrogen. At what ratio of partial pressures will the mass of gases be identical? [15]
Answer: D
💡 Solution & Explanation
For identical masses: m($O_2$) = m($N_2$) => n($O_2$)*32 = n($N_2$)*28 [15]. Since n is ∝ partial pressure: P($O_2$)*32 = P($N_2$)*28 => P($O_2$) = 0.875 * P($N_2$) [15].
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