Which of the following are spontaneous processes? Iron rusts in moist air. The b

Question

Which of the following are spontaneous processes? Iron rusts in moist air. The broken egg shells rise from the floor and reassemble themselves. Two bodies at thermal equilibrium exchange heat in such a way to establish different temperatures T_1 and T_2, if we treat them together as an isolated system. The molecule of H_2 forms from two hydrogen atoms. Electricity passes through molten NaCl in an electrolytic cell and we observe yellow-green chlorine gas formation at the anode and silvery, liquid metallic

Explanation / Answer

A) rusting of iron is spontaneous

B) rising of egg shell is non spontaneous

C) heat exchange at thermal equilibrium is non spontaneous

D) formation of H2 is spontaneous

E) electrolysis of NaCl is non spontaneous

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