Calculate the ΔH°_rxn for the Following Reaction

question 48

Multiple Choice

Calculate the ΔH°_rxn for the following reaction. (ΔH°_f [AsH₃(g) ] = 66.4 kJ/mol; ΔH°_f [H₃AsO₄(aq) ] = −904.6 kJ/mol; ΔH°_f [H₂O(l) ] = −285.8 kJ/mol) H₃AsO₄(aq) + 4H₂(g) → AsH₃(g) + 4H₂O(l)

• A)−1981.4 kJ
• B)−685.2 kJ
• C)−172.2 kJ
• D)172.2 kJ
• E)685.2 kJ

---

Definitions:

Psychosocial Influences

The impact of societal and interpersonal factors on an individual's thoughts, feelings, and behaviors, particularly in the context of consumer behavior.

Products Pyramid

A hierarchical representation of a company’s product lines or portfolio, ranging from the core, fundamental products to niche, specialized items.

Motivation

The process that initiates, guides, and maintains goal-oriented behaviors, driving individuals to pursue and attain goals.

Maslow Hierarchy

A psychological theory proposing a five-tier model of human needs, from basic (physiological) to more complex (self-actualization) needs.