A 100-mL sample of water is placed in a coffee cup calorimeter. When 1.0 g of an ionic solid is added, the temperature decreases from 21.5°C to 20.8°C as the solid dissolves. Which of the following is true for the dissolving of the solid?
A) ΔH < 0
B) ΔSsys< 0
C) ΔSuniv > 0
D) ΔSsurr > 0
E) none of these
Correct Answer:
Verified
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