Predicting the Sign of SPredict whether S is positive or
Chapter , Problem 1PE(choose chapter or problem)
Problem 1PE
Predicting the Sign of S
Predict whether S is positive or negative for each process, assuming each occurs at constant temperature:
(a) H2O(l)H2O(g)
(b) Ag+(aq) + Cl-(aq) AgCl(s)
(c) 4 Fe(s) + 3O2(g)2 Fe2O3(s)
(d) N2(g) + O2(g)2 NO(g)
Indicate whether each process produces an increase or decrease in the entropy of the system:
(a) CO2(s) CO2(g)
(b) CaO(s) + CO2(g)CaCO3(s)
(C) HCl(g) + NH3(g) NH4Cl(s)
(d) 2 SO2(g) + O2(g) 2 SO3(g)
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