Вычислите объём (л) смеси O₂ и N₂ массой 7,25 г со средней молярной массой 29 при 2 атм и 400 K.

  1. 4,1
  2. 4,48
  3. 8,2
  4. 8,96

📝 Detailed explanation

n=7,25/29=0,25 моль. V=nRT/P=0,25·0,0821·400/2 ≈ 4,1 л.
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