В смеси CO и CO₂ число молекул в 2,25 раза меньше числа атомов. Найдите φ(CO₂) в исходной смеси.

  1. 3/4
  2. 2/5
  3. 1/4
  4. 4/5

📝 Detailed explanation

Пусть x — доля CO₂. Атомов на молекулу в среднем: 2(1−x)+3x = 2+x. (2+x)/1 = 2,25 → x = 0,25 = 1/4.
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