Яку кількість теплоти необхідно затратити, щоб закип'ятити 3 кг води, взятої при температурі 20 градусів Цельсію, в алюмінієвій каструлі масою 400 г, якщо в ході даного процесу 20 г води википіло?
irina707
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16.11.2020 21:35
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