What Mass of Propane, C₃H₈(g),Must Be Burned to Supply 2580

question 141

Multiple Choice

What mass of propane, C₃H₈(g) ,Must be burned to supply 2580 kJ of heat? The standard enthalpy of combustion of propane at 298 K is -2220 kJ.mol^-1

• A) 25.6 g
• B) 51.2 g
• C) 102 g
• D) 75.9 g
• E) 37.9 g

---

Definitions:

Ferns

A group of non-flowering plants that reproduce via spores and have neither seeds nor flowers. They have large fronds and are often found in moist, shaded areas.

Gymnosperms

A group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes, characterized by seeds that are not enclosed in an ovary.

Gnetophyta

A division of gymnosperms, with characteristics that share some similarities to angiosperms, including the genera Ephedra, Gnetum, and Welwitschia.

Gametophyte

The sexual phase in the life cycle of plants and algae that produces gametes, typically haploid.