What Is the Reaction for the Standard Enthalpy of Formation

question 24

Multiple Choice

What is the reaction for the standard enthalpy of formation for HCl(g) ?

• A) H⁺(aq) + Cl-(aq) → HCl(g)
• B) 1/2 H₂(g) + 1/2Cl₂(l) → HCl(s)
• C) NH₃(g) + Cl₂(g) → NH₂Cl(g) + HCl(g)
• D) 1/2 H₂(g) + 1/2Cl₂(g) → HCl(g)
• E) 1/2 H₂(l) + 1/2Cl₂(g) → HCl(l)

---

Definitions:

Peak Season

The time period during which the demand for a certain product, service, or destination is highest, often resulting in higher prices and increased business activity.

Seasonal Workforce

Employees hired on a temporary basis to meet production or service demands during peak seasons.

Flexible Work Hours

An employment schedule that allows workers to vary their arrival and departure times, and possibly choose their working hours, offering adaptability to personal needs and demands.

Time Flexibility

The ability to adapt schedules or timelines to accommodate changes or unexpected demands in processes or operations.