A First-Order Reaction Is 58% Complete at the End of 11

question 104

Multiple Choice

A first-order reaction is 58% complete at the end of 11 min. What is the value of the rate constant?

• A) 0.079 min^-1
• B) 0.37 min^-1
• C) 7.9 × 10^-2 min^-1
• D) 3.4 × 10^-2 min^-1
• E) 5.0× 10^-2 min^-1

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Definitions:

Reliability

The level of consistency and stability in the results produced by an assessment instrument across time.

Validity

The extent to which a test accurately measures what it is intended to measure.

Correlation

A statistical measure that describes the extent to which two variables change together, but does not necessarily imply causation.

Discriminant Validity

The extent to which a test or experiment measures different constructs, demonstrating that the scales do not correlate too highly with measures from which they should differ.