Which of the Following Has a Standard Enthalpy of Formation

question 141

Multiple Choice

Which of the following has a standard enthalpy of formation value (ΔH°_f) of zero at 298 K?

• A) H₂O(g)
• B) O(g)
• C) H₂O(l)
• D) O₂(g)
• E) O₃(g)

---

Definitions:

Universal Health-Care

A health care system that provides medical services to all citizens, usually funded through government programs.

Social Welfare Network

A system of governmental and non-governmental organizations working together to provide assistance and support to those in need, aiming to ensure the well-being of society.

Social Gospel Movement

A religious movement that emerged in the 19th century, emphasizing the application of Christian ethics to social problems such as poverty and inequality.

Class Equality

Class equality refers to a societal state in which all social classes have equal rights, opportunities, and access to resources, minimizing or eliminating disparities in wealth and power.