In the Presence of Excess Oxygen,methane Gas Burns in a Constant-Pressure

question 40

Multiple Choice

In the presence of excess oxygen,methane gas burns in a constant-pressure system to yield carbon dioxide and water:
CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l) ΔH = -890.0 kJ
Calculate the value of q (kJ) in this exothermic reaction when 1.70 g of methane is combusted at constant pressure.

• A)-94.6 kJ
• B)0.0306 kJ
• C)-0.0106 kJ
• D)32.7 kJ
• E)-9.46 × 10⁴ kJ

---

Definitions:

Psychosocial Aspects

Relates to the interrelation of social factors and individual thought and behavior, often considered when assessing health outcomes and treatments.

Wellness Care

Healthcare focused on maintaining or improving health and preventing illness through lifestyle choices, regular checkups, and screenings.

Illness Narrative

The personal story or account of an individual's experience living with, understanding, and coping with illness or disease.

Symptoms

The signs or notices of a disease or the physical and mental changes indicating that a condition exists.