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Author Question: Consider the conversion of white tin to gray tin:Sn(white) Sn(gray)H = -2.09 kJS = -7.41 J/KBased ... (Read 105 times)

skymedlock

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Question 1

If a reaction with a negative value of ΔS is nonspontaneous at constant temperature and pressure,
◦ ΔG is negative and ΔH is positive.
◦ ΔG is positive and ΔH may be positive or negative.
◦ ΔG is negative and ΔH may be positive or negative.
◦ ΔG is positive and ΔH is positive.

Question 2

Consider the conversion of white tin to gray tin:

Sn(white) → Sn(gray)ΔH° = -2.09 kJΔS° = -7.41 J/K

Based on these data,
◦ gray tin is stable below 15°C and white tin is stable above 15°C.
◦ white tin is stable below 15°C and gray tin is stable above 15°C.
◦ gray tin is stable below 9°C and white tin is stable above 9°C.
◦ white tin is stable below 9°C and gray tin is stable above 9°C.


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Marked as best answer by skymedlock on Feb 15, 2020

Chou

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skymedlock

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Reply 2 on: Feb 15, 2020
Excellent


ryhom

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Reply 3 on: Yesterday
Gracias!

 

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