14. Решение задачи по химии №001 474

47. Without making calculations, set the sign of ∆rS of the following processes:
a) Fe(c) 3 O2(g) = Fe2O3 (c);
b) PCl5(g) = PCl3(g) Сl2(g);
c) N2(g) H2O(l) = NH4NO2(c);
d) crystallization of water.

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