8,1 MJ issiqlik miqdorini hosil qilish uchun necha gramm spirt yoqish kerak? q=2,7·10⁷ J/kg.
- 0,3
- 0,6
- 30
- 300
📝 Detailed explanation
Q = mq formulasidan m = Q/q.m = 8,1·10⁶ / (2,7·10⁷) = 0,3 kg = 300 g.
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