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Given which of the following sets of thermodynamic parameters is a reaction spontaneous only at higher...

Given which of the following sets of thermodynamic parameters is a reaction spontaneous only at higher temperatures?

A) ΔH < 0 and ΔS < 0

B) ΔH < 0 and ΔS > 0

C) ΔH > 0 and ΔS > 0

D) ΔH > 0 and ΔS < 0

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A galvanic cell is constructed using a zinc electrode immersed in a 1.0 M Zn2+ solution and a silver electrode immersed in a 1.0 M Ag+ solution. What is the overall equation for this cell?

A) Ag+ (aq) + Zn (s) → Ag (s) + Zn2+ (aq)

B) 2Ag+ (aq) + Zn (s) → 2Ag (s) + Zn2+ (aq)

C) Ag (s) + Zn2+ (aq) → Ag+ (aq) + Zn (s)

D) 2Ag (s) + Zn2+ (aq) →2Ag+ (aq) + Zn (s)

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Is the following reaction spontaneous?

Cu2+ (aq) + 2Ag (s) → Cu (s) + 2Ag+ (aq)

A) Yes

B) No

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