Calculate the Change in Internal Energy (ΔU) for a System

question 12

Multiple Choice

Calculate the change in internal energy (ΔU) for a system that is giving off 25.0 kJ of heat and is changing from 12.00 L to 6.00 L in volume at 1.50 bar. (Remember that 100 J = 1 L bar)

• A) +25.9 kJ
• B) -16.0 kJ
• C) -25.9 kJ
• D) -24.1 kJ
• E) 937 kJ

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Definitions:

Cost-Effective

An economic term referring to the ability of a process or product to deliver greater benefits at lower costs, essentially offering good value for the amount spent.

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A process by which a business or organization devises a plan to reach and persuade potential customers to buy its products or services, often including the development of the product, pricing, distribution, and promotional tactics.

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The connected network of individuals, organizations, resources, activities, and technologies involved in the manufacture and sale of a product or service.

Supply Chain Management

The oversight of materials, information, and finances as they move from supplier to manufacturer to wholesaler to retailer to consumer, involving the coordination and integration of these flows both within and among companies.