A Reaction Has ΔH° = -60

question 143

Multiple Choice

A reaction has ΔH° = -60.9 kJ/mol and ΔS° = 266.6 J/K.Is this reaction spontaneous or nonspontaneous? At what temperature (if any) can the spontaneity be reversed?

• A)nonspontaneous,can be made spontaneous at 228 K
• B)nonspontaneous,cannot be made spontaneous at any temperature
• C)spontaneous,can be made nonspontaneous at 228 K
• D)spontaneous,cannot be made nonspontaneous at any temperature

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Definitions:

Break-Even Point

The financial point at which total revenues exactly equal total costs, resulting in neither profit nor loss.

Profitability

An indicator of how effectively a company generates profit from its revenues, often measured by profit margins or return on investment.

Cost

The value of money that has been used up to produce something or deliver a service, and hence is not available for use anymore.

Composite Units

A measurement or costing method that combines different elements or articles to determine a standard unit rate or cost.