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Nhicute
2 năm trước
Một khối hình chữ nhật có kích thước (5,10,15) cm A) cần cung cấp cho khối nhôm đó 1 nhiệt lượng là bao nhiêu để nó tăng nhiệt độ từ 25°C đến 200°C. Biết khối lượng riêng và nhiệt dung riêng của nhôm là 2700kg/m3 và 880 J/KgK B) nếu dùng nhiệt lượng đó để đun 1l nước từ 30°C thì nước có sôi được không?. Biết nhiệt lương mất mát bằng 1/5 nhiệt lượng do nước thu vào nhiệt dung riêng của nước 4200J/KgK và khối lượng riêng của nước là 1000kg/m3.Giúp mik vs m.n ơi mik cần gấp
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