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Question
For the process
CaCO3(calcite) -> CaCO3(aragonite) 
H = -0.21 kJ, S = -4.2 J/K
Assuming that the surroundings can be considered a large heat reservoir at 25C, calculate Ssurr and Stotal for the process at 25C and 1 atm pressure. Is the process spontaneous at 25C and 1 atm pressure?
A) Ssurr = 4.2 J/K, total = 0, not spontaneous
B) Ssurr = 0.7 J/K, Stotal = -3.5 J/K, not spontaneous
C) Ssurr = -0.7 J/K, Stotal = -4.9 J/K, spontaneous
D) Ssurr = -0.7 J/K, Stotal = -4.9 J/K, not spontaneous
Answer
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