8,1 MJ issiqlik miqdorini hosil qilish uchun necha gramm spirt yoqish kerak? q=2,7·10⁷ J/kg.

  1. 0,3
  2. 0,6
  3. 30
  4. 300

📝 Detailed explanation

Q = mq formulasidan m = Q/q.
m = 8,1·10⁶ / (2,7·10⁷) = 0,3 kg = 300 g.
4 / 36 (11%)
Question 4 of 36
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