15. For each of the following solutions, would you expect it with Raoult's law to be relatively ideal, to show a positive deviation, or to show a negative deviation from the ideal behavior? (I) Ethanol-hexane (II) Benzene-toluene (III) Acetone-CS2 (A) (I) ideal solution (II) Negative (III) Positive (B) (I) Positive (II) ideal solution (III) Positive (C) (I) Positive (II) ideal solution (III) Negative (D) (I) Negative (II) Positive (III) Positive (E) (I) Negative (II) ideal solution (III) ideal solution

15. For each of the following solutions, would you expect it with Raoult's law to be relatively ideal, to show a positive deviation, or to show a negative deviation from the ideal behavior? (I) Ethanol-hexane (II) Benzene-toluene (III) Acetone-CS2
(A) (I) ideal solution (II) Negative (III) Positive
(B) (I) Positive (II) ideal solution (III) Positive
(C) (I) Positive (II) ideal solution (III) Negative
(D) (I) Negative (II) Positive (III) Positive
(E) (I) Negative (II) ideal solution (III) ideal solution

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統計： A(0), B(1), C(2), D(0), E(0) #3252557

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B1 · 2025/10/21

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題目解析這道題目要求我們判斷三種不同...

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4. A strip of copper is placed in a 1 M solution of copper nitrate, and a strip of silver is placed in a 1 M solution of silver nitrate. The two metal strips are connected to a voltmeter by wires, and a salt bridge connects the solutions. The following standard reduction potentials apply: Ag+(aq) + e- → Ag(s) E° = +0.80 V Cu2+(aq) + 2e- → Cu(s) E° = +0.34 V When the voltmeter is removed and the two electrodes are connected by a wire, which of the following does .not. take place? (A) Negative ions pass through the salt bridge from the silver half-cell to the copper half-cell. (B) Some positive copper ions pass through the salt bridge from the copper half-cell to the silver half-cell. (C) The silver electrode increases in mass as the cell operates. (D) Electrons flow in the external circuit from the copper electrode to the silver electrode. (E) There is a net general movement of silver ions through the salt bridge to the copper half-cell.

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