For the Reaction H₂(g) + 1/2 O₂(g) → H₂O(g) ΔH°

question 82

Multiple Choice

For the reaction H₂(g) + 1/2 O₂(g) → H₂O(g) ΔH° = -241.8 kJ/mol, what quantity of heat, in kJ, evolved when a 72.0 g mixture containing equal parts of H₂ and O₂, by mass, is burned?

• A) 8630 kJ
• B) 4860 kJ
• C) 1088 kJ
• D) 272 kJ
• E) 544 kJ

---

Definitions:

Audacity

An open-source digital audio editor and recording application software, available for multiple operating systems.

Slide Master

A template slide in presentation software that controls the layout, theme, and style of all slides within the presentation.

Title Slide

The first slide in a presentation, typically containing the presentation title, presenter name, and sometimes the date or additional information.

First Slide

The opening slide in a presentation, typically playing a similar role as the title slide by introducing the subject or theme.