A Certain Chemical Reaction Sets Up an Equilibrium as Follows

question 143

Multiple Choice

A certain chemical reaction sets up an equilibrium as follows
3A₂(aq) + 2B₃(aq) 6AB(aq)
After being started with unknown amounts of A₂ and B₃. Once the system reaches equilibrium the concentrations of A₂, B₃, and AB are precisely determined and the temperature recorded. What other quantities can be determined? Q ₀ is the reaction quotient at the initial conditions.

• A) Q ₀, K_c, K, ΔG
• B) Q ₀, K, ΔG, ΔG°
• C) K, K_c, ΔG, ΔG°
• D) Q ₀, K_c, ΔG, ΔG°
• E) Q ₀, K_c, K, ΔG°

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Definitions:

Percentiles

A measure that indicates the value below which a given percentage of observations in a group of observations falls.

Stanines

Derived from the term “standard nines,” this is a standardized score frequently used in schools. Often used with achievement tests, stanines have a mean of 5 and a standard deviation of 2, and range from 1 to 9.

T-scores

Standardized scores with a mean of 50 and a standard deviation of 10, used to compare an individual's score against a normative sample.

Grade Equivalents

A metric used in education to compare a student's test score with the average scores of students in other grades.