Consider the following equation: Ag+ (aq) + CI-(aq) → Ag+CI- (s) ; ∆H = -...

WAEC 2001

Consider the following equation: Ag+ (aq) + CI-(aq) → Ag+CI- (s) ; ∆H = - 65.7 kJmol-1. From the equation, it can be deduced that

A. direct combination is involved and the reaction is endothermic
B. a solid is formed and heat is evolved
C. activation energy is high and a catalyst is required
D. the reaction is endothermic and occurs at high temperature

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Correct Answer: Option B

Explanation

From the chemical equation, the product Ag\(^+\) Cl\(^-\) is solid and for the fact that H is -ve, it is exothermic i.e heat was evolved. Option B is the correct answer.

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Consider the following equation: Ag+ (aq) + CI-(aq) → Ag+CI- (s) ; ∆H = -...

Correct Answer: Option B

Explanation

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