Consider the Following Two Reactions: a → 2B ΔH°_rxn =

question 150

Multiple Choice

Consider the following two reactions: A → 2B ΔH°_rxn = 456.7 kJ/mol
A → C ΔH°_rxn = -22.1 kJ/mol
Determine the enthalpy change for the process:
2B → C

• A)-478.8 kJ/mol
• B)-434.6 kJ/mol
• C)434.6 kJ/mol
• D)478.8 kJ/mol
• E)More information is needed to solve the problem.

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Definitions:

Adrenal Cortex

The adrenal cortex is the outer layer of the adrenal glands, located above the kidneys, and it secretes hormones like cortisol, aldosterone, and androgens, playing key roles in stress response, metabolism, and blood pressure regulation.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response, increasing heart rate and blood pressure.

Cortisol

A steroid hormone produced by the adrenal glands, involved in the response to stress and regulation of metabolism.

Epinephrine

A hormone and neurotransmitter also known as adrenaline; plays a key role in the fight-or-flight response by increasing heart rate and blood flow.