A Second- Order Reaction Has a Half- Life of 18

question 96

Multiple Choice

A second- order reaction has a half- life of 18 s when the initial concentration of reactant is 0.71 M. The rate constant for this reaction is M^{- 1}s^{- 1}.

• A) 3.8 × 10^{- 2}
• B) 7.8 × 10^{- 2}
• C) 18
• D) 1.3
• E) 2.0 × 10^{- 2}

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Definitions:

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Sociocultural Framework

A theoretical model that highlights the important role social interaction and cultural context play in development and learning.

Lev Vygotsky

A Soviet psychologist known for his work on psychological development in children, including the concepts of the zone of proximal development and scaffolding.

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A serious medical condition affecting children and adolescents, characterized by having excess body fat that negatively impacts their health.