The following values were determined for a reaction: H = - 60 kJ, S = + 48 J/K I

Question

The following values were determined for a reaction:   H = - 60 kJ,   S = + 48 J/K

Is the reaction endothermic or exothermic? Will the randomness of the system increase or decrease when the reaction occurs?

The reaction is exothermic, the randomness decreases.

The reaction is exothermic, the randomness increases.

The reaction is endothermic, the randomness increases.

The reaction is endothermic, the randomness decreases.

The reaction is exothermic, the randomness decreases.

The reaction is exothermic, the randomness increases.

The reaction is endothermic, the randomness increases.

The reaction is endothermic, the randomness decreases.

Explanation / Answer

H determines whether the reaction is endothermic or exothermic

Since H is negative, the reaction is exothermic

S determines entropy or randomness

Since S is positive, randomness increases

Answer: B

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