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Câu 6: [VNA] Phát biểu nào sau đây là sai khi nói về sự nóng chảy và sự đông đặc?A. Các chất khác nhau sẽ nóng chảy (hay đông đặc) ở nhiệt độ khác nhauB. Đối với một chất nhất định, nếu nóng chảy ở nhiệt độ nào thì sẽ đông đặc ở nhiệt độ ấyC. Nhiệt độ của vật sẽ tăng dần trong quá trình nóng chảy và giảm dần trong quá trình đông đặcD. Phần lớn các chất nóng chảy (hay đông đặc) ở một nhiệt độ nhất định

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