A System Delivers 1275 J of Heat While the Surroundings

question 43

Multiple Choice

A system delivers 1275 J of heat while the surroundings perform 855 J of work on it. Calculate ΔE in J.

• A)−2130 J
• B)−420 J
• C)420 J
• D)2130 J
• E)−1275 J

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Definitions:

Multichannel Marketing

The practice of interacting with customers using a combination of indirect and direct communication channels – websites, retail stores, mail order catalogs, direct mail, email, mobile, etc.

Communication Channels

The mediums through which information and messages are transmitted from one entity to another, including verbal, written, and digital forms.

Showrooming

The consumer practice of examining products in a brick-and-mortar retail store without purchasing them there, then buying the product online at a lower price.

Consumer Electronics

Electrical devices intended for everyday use by individuals, such as smartphones, televisions, and laptops.