A Scientist Is Trying to Speed Up the Rate of a Reaction

question 19

Multiple Choice

A scientist is trying to speed up the rate of a reaction. They want the reaction rate to increase by four times. How should they change the temperature to achieve this rate increase?

• A) increase the temperature by 20°C
• B) increase the temperature by 40°C
• C) decrease the temperature by 20°C
• D) decrease the temperature by 40°C

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Definitions:

Electrical Activity

The flow of electric charge that powers the functioning of cells, particularly nerve and muscle cells in the body.

Brain

The organ located in the skull responsible for central nervous system functioning, including thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger, and every process that regulates our body.

Graph Paper

A type of paper printed with fine lines making up a grid used for drawing graphs, charts, or other precise diagrams.

Orthopedist

A specialist who diagnoses and treats diseases and disorders of the muscles and bones.