What Is the Standard Enthalpy Change for the Decomposition of One

question 55

Multiple Choice

What is the standard enthalpy change for the decomposition of one mole of SO₃? 2SO₂ + O₂→ 2SO₃ ΔH°_rxn = -198 kJ/mol

• A) 198 kJ/mol
• B) -99.0 kJ/mol
• C) 99.0 kJ/mol
• D) 396 kJ/mol
• E) -396 kJ/mol

---

Definitions:

Depression

A mental health disorder characterized by persistently depressed mood or loss of interest in activities, causing significant impairment in daily life.

Work

The effort or activity directed towards the production or accomplishment of something, typically for earning income.

Family Stressors

Events or conditions within the family unit that cause emotional strain and tension among its members.

Workplace Incivility

concerns low-intensity rude or disrespectful behavior with ambiguous intent to harm that violates workplace norms for mutual respect.