Multiple Choice
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
Correct Answer:
Verified
Correct Answer:
Verified
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