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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Whelan Whelan
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9 years ago
For the process

   CaCO3(calcite) → CaCO3(aragonite)   ΔH° = -0.21 kJ, ΔS° = -4.2 J/K

Assuming that the surroundings can be considered a large heat reservoir at 25°C, calculate ΔSsurr and ΔStotal for the process at 25°C and 1 atm pressure. Is the process spontaneous at 25°C and 1 atm pressure?
A) ΔSsurr = 4.2 J/K, Δtotal = 0, not spontaneous
B) ΔSsurr = 0.7 J/K, ΔStotal = -3.5 J/K, not spontaneous
C) ΔSsurr = -0.7 J/K, ΔStotal = -4.9 J/K, spontaneous
D) ΔSsurr = -0.7 J/K, ΔStotal = -4.9 J/K, not spontaneous
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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hbutler2hbutler2
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9 years ago
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Whelan Author
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9 years ago
Smart ... Thanks!
cipcal
wrote...

Yesterday
Good timing, thanks!
kaytee23
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2 hours ago
Helped a lot
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