Данил1901
06.07.2021 03:22

Артур проводил опыты со льдом и водой, нагревая их на электроплитке в закрытой
алюминиевой кружке. Оказалось, что для плавления 0,5 кг льда, находившегося при 0 °C,
требуется 700 секунд, а для нагревания такой же массы воды на 30 °C необходимо
280 секунд. Артур предположил, что мощность плитки постоянна, и что всё количество
теплоты, поступающее от плитки, идёт на плавление льда (или нагревание воды). Зная, что
удельная теплоёмкость воды равна 4200 Дж/(кг·°С Артуру определить по
полученным экспериментальным данным удельную теплоту плавления льда.

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16.03.2021 22:00

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