Determine the Equilibrium Constant for the Following Reaction at 498

question 61

Multiple Choice

Determine the equilibrium constant for the following reaction at 498 K. 2 Hg(g) + O₂(g) → 2 HgO(s) ΔH° = -304.2 kJ; ΔS° = -414.2 J/K

• A) 1.87 × 10¹⁰
• B) 8.10 × 10³¹
• C) 2.31 × 10^-22
• D) 5.34 × 10^-11
• E) 4.33 × 10²¹

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Definitions:

Appropriate Benchmark

A standard or point of reference chosen for comparison that is relevant and suitable for the evaluation of performance or quality.

Cost Control

The process of monitoring and managing expenses to ensure they do not exceed predefined limits.

Flexible Budget

A budget that adjusts or varies with changes in volume or activity, providing a more accurate reflection of costs under different operating conditions.

Three-Way Overhead Variance

This is a method used in cost accounting to analyze the differences between actual overhead costs and budgeted overhead costs, broken down into spending, efficiency, and volume variances.