At 25°C the Rate Constant for the First-Order Decomposition of a Pesticide

question 81

Multiple Choice

At 25°C the rate constant for the first-order decomposition of a pesticide solution is 6.40 × 10^-3 min-1.If the starting concentration of pesticide is 0.0314 M,what concentration will remain after 62.0 min at 25°C?

• A)1.14 × 10^-1 M
• B)47.4 M
• C)1.25 ×10^-2 M
• D)2.11 × 10^-2 M
• E)2.68 × 10^-2 M

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Definitions:

Speciation

The process through which new genetically distinct species evolve from a single ancestral species.

Geographic Isolation

A situation where a population of species is physically separated from exchanging genetic material with other populations due to geographical barriers, leading to divergent evolution.

Reproductive Isolation

A set of mechanisms that prevent members of different species from producing offspring, or ensure that any offspring are sterile, thereby maintaining species boundaries.

Transgenic Organism

An organism that has been genetically modified to contain DNA from another species, allowing it to express traits not originally found in its genome.