A Mixture 0

question 4

Multiple Choice

A mixture 0.500 mole of carbon monoxide and 0.400 mole of bromine was placed into a rigid 1.00-L container and the system was allowed to come to equilibrium.The equilibrium concentration of COBr₂ was 0.233 M.What is the value of K_c for this reaction?
CO(g) + Br₂(g)
COBr₂(g)

• A)5.23
• B)1.22
• C)1.165
• D)0.858
• E)0.191

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Definitions:

Standard Cost

A predetermined cost of manufacturing, calculated based on the expected costs of material, labor, and overhead for a unit of product.

Materials Price Variance

The difference between the actual cost of materials used in production and the standard cost, reflecting changes in material prices.

Materials Quantity Variance

The difference between the expected amount of materials needed for production and the actual amount used.

Materials Price Variance

The difference between the actual cost of materials used in production and the expected (or budgeted) cost.