Which Equation Has a ΔH_rxn That Is Not Equal to ΔH^o_f

question 103

Multiple Choice

Which equation has a ΔH_rxn that is not equal to ΔH^o_f of the product?

• A) O₂(g) + H₂(g) → H₂O₂(g)
• B) ½O₂(g) + H₂(g) → H₂O(g)
• C) H₂(g) + ½O₂(g) + → H₂O(l)
• D) NO(g) + ½O₂(g) → NO₂(l)
• E) ½H₂(g) + ½Cl₂(g) → HCl(g)

---

Definitions:

Manipulation Checks

Assessments used in experimental research to determine if the independent variable has been successfully manipulated.

Statistically Significant

Indicates that the likelihood of the observed result occurring by chance is low, suggesting a true effect in a study.

Causal Attributions

The process by which individuals explain the causes of behavior and events, which can influence their motivation and emotions.

Experimental Manipulation

Experimental manipulation involves systematically altering variables in a study to determine cause-and-effect relationships between them.