In Terms of the Enthalpy of Formation, Which of the Following

question 118

Multiple Choice

In terms of the enthalpy of formation, which of the following compounds is the most unstable compared to its elements under standard conditions?

• A)KCl (s), \(\Delta\)H_f ^\(\degree\) = - 435.9 kJ / mol
• B)PH₃ (g), \(\Delta\)H_f^\(\degree\) =+ 5.4 kJ/mol
• C)Fe₃O₄ (s), \(\Delta\)H_f^\(\degree\)=- 1117.1 kJ/mol
• D)NiO(s), \(\Delta\)H_f^\(\degree\) = - 239.7 kJ/mol
• E)ICl(g), \(\Delta\)H_f^\(\degree\) = +17.8 kJ/mol

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Definitions:

Inventory Requirements

The specific amount and type of stock or materials a business needs to maintain to fulfill customer orders efficiently.

Personnel Levels

The number of staff members employed in a business or organization, which can be adjusted based on workload and operational requirements.

Inventory Decisions

The process of determining the optimal level and timing of inventory to minimize costs and meet demand.

Aluminum Manufacturer

A company specialized in producing aluminum through the processing of raw materials, often involving the bauxite ore.