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iamaloner01
2 năm trước
Thả một quả cầu bằng nhôm khối lượng 210 g được đun nóng tới 142°C vào một cốc đựng 244g nước ở 20°C, biết nhiệt độ khi có sự cân bằng nhiệt là 42°C. Tính nhiệt dung riêng của nhôm. Biết nhiệt dung riêng của nước là 4200J/kg.K. a. Vật nào thu nhiệt, vật nào tỏa nhiệt b. Tinh nhiệt dung riêng của nhôm
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