Given the Following and That R = 8 A) $5.3 \times 10 ^ { - 13 }$

question 52

Multiple Choice

Given the following and that R = 8.314 J/K ?mol, determine the equilibrium constant, K, at 298K for the following reaction:
AgBr(s) ? Ag⁺(aq) + Br-(aq)
$\begin{array}{ll}\text { Substance } & \underline{\Delta}_{\mathrm{f}} \mathrm{G}^{\circ}(\mathrm{kJ} / \mathrm{mol}) \text { at } 298 \mathrm{~K} \\\hline\mathrm{Br}-(\mathrm{aq}) & -104.0 \\\mathrm{Ag}^{+}(\mathrm{aq}) & 77.12 \\\mathrm{AgBr}(\mathrm{s}) & -96.9\end{array}$

• A) \(5.3 \times 10 ^ { - 13 }\)
• B) \(5.2 \times 10 ^ { 4 }\)
• C) \(1.9 \times 10 ^ { 12 }\)
• D) \(1.9 \times 10 ^ { - 5 }\)
• E) \(1.8 \times 10 ^ { - 49 }\)

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Definitions:

Enhancer

A short region of DNA that can be bound with proteins (transcription factors) to increase the likelihood that transcription of a particular gene will occur.

Lac Operon

A gene system found in E. coli and other bacteria that regulates the metabolism of lactose, demonstrating gene regulation principles.

Operon's Genes

A group of genes in prokaryotes that function together, controlled by a single regulatory signal or promoter.

Escherichia Coli

A type of bacteria that is commonly found in the intestines of humans and animals; some strains can cause food poisoning.