Characteristics of an Endothermic Process
Which observation would indicate that the dissolution of anhydrous copper sulfate (CuSO4) in water is an endothermic process?
A
The solution turns blue due to Cu²⁺ ions, which is a characteristic of all endothermic processes.
B
The entropy of the system decreases, which is a defining feature of endothermic reactions.
C
The solution temperature decreases as CuSO4 dissolves, indicating heat absorption from the surroundings.
D
The dissolution releases heat, causing the surrounding water to warm up significantly.
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