alleryStart learning →A reaction quotient equation using absolute concentrations rather than relative values is:
AThe only strict form there is
BNever used at any level at all
CValid only above 100 degrees
DA simplification of a stricter form
Answer & Solution
Correct answer: D. A simplification of a stricter form
1. Equilibrium constants are strictly dimensionless quantities.
2. The reaction quotient equations as usually written are a simplification of more rigorous expressions.
3. Those rigorous expressions use relative values for concentrations and pressures rather than absolute values.
4. The simplification is standard at this level and gives the same numbers.
5. It is a convention, not a temperature-limited approximation.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 13 'Fundamental Equilibrium Concepts', sections 13.1-13.4_
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