What Is the Energy Change When 565 G of C₂H₅OH

question 87

Multiple Choice

What is the energy change when 565 g of C₂H₅OH boil at its normal boiling point of 78.3°C? (ΔH_vap for ethanol = 38.6 kJ/mol; molar mass of C₂H₅OH = 46.0 g/mol)

• A) 396 kJ
• B) 302 kJ
• C) 119 kJ
• D) 474 kJ
• E) 124 kJ

---

Definitions:

Machine-Hours

A measure of production time, representing the number of hours machines are operating.

Manufacturing Departments

Specific areas within a manufacturing facility where different stages of the production process are carried out.

Job A496

A specific, identifiable work task or project within an organization, denoted by its unique job number for tracking and costing purposes.

Total Job Cost

The complete cost of a particular job, project, or order, including all direct and indirect costs such as materials, labor, and overhead.