Compare the Following Two Potential Energy Diagrams for General Reactions

question 121

Multiple Choice

Compare the following two potential energy diagrams for general reactions I andII. Which statement below is correct with respect to their corresponding enthalpy of reaction and their relative rates?
I.
II.

• A) Reaction I is exothermic , reaction II is endothermic and reaction I proceeds at a faster rate.
• B) Both reactions are exothermic and reaction I proceeds at a faster rate.
• C) Reaction I is endothermic , reaction II is exothermic and reaction I proceeds at a faster rate.
• D) Both reactions are endothermic and reaction II proceeds at a faster rate.
• E) Both reactions are endothermic and reaction I proceeds at a faster rate.

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Definitions:

Nociception

The sensory process that provides the signals that lead to the perception of pain in response to a potentially harmful stimulus.

Endogenous Opiates

Naturally occurring chemicals in the body that reduce pain, enhance pleasure, and play a role in the stress response, similar to opioids.

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the brain and is encased within the vertebral column.

Acetylcholine

A neurotransmitter in both the central and peripheral nervous systems that plays a crucial role in muscle movement and cognitive functions.