Время протекания реакции при температуре 30°С на 6 секунд больше, а при 50°С на 2 секунды меньше, чем при 40°С. Определите время протекания реакции при 20°С.

  1. 9
  2. 27
  3. 81
  4. 243
7 / 44 (16%)
Question 7 of 44
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