Read the following reactions.

Reaction 1: NaCl(s) → Na+(aq) + Cl−
Reaction 2: CaCO3(s) → CaO(s) + CO2(g)

Which reaction leads to an increase in entropy?

A) Only Reaction 1
B) Only Reaction 2
C) Both Reaction 1 and 2
D) Neither Reaction 1 nor 2

The answer to this problem is. 67

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Answersublimation;

The answer is:   [d]:   "ultraviolet" {"  uv  "} .