What Is the Reaction for the Standard Enthalpy of Formation

question 18

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)+ 1/2 Cl₂(l)→ HCl(s)
• C)NH₃(g)+ Cl₂(g)→ NH₂Cl(g)+ HCl(g)
• D)1/2 H₂(g)+ 1/2 Cl₂(g)→ HCl(g)
• E)1/2 H₂(l)+ 1/2 Cl₂(g)→ HCl(l)

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Definitions:

Contribution Margin

The amount by which a product’s selling price exceeds its variable costs, indicating how much contributes to covering fixed costs and generating profit.

Cost Center

A department or unit within an organization that does not directly generate revenue but incurs costs, used for budgeting and cost control.

Control Costs

Efforts and measures implemented to monitor and manage expenses to ensure they align with budgetary constraints and financial goals.

Cost Center Evaluation

The process of analyzing the performance and efficiency of a department or unit within an organization that does not directly generate revenue.