A System Absorbs 21

question 49

Multiple Choice

A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial internal energy, U, is 61.2 kJ, what is the final value of U?

• A) 32.7 kJ
• B) 46.5 kJ
• C) 61.2 kJ
• D) 75.9 kJ
• E) 89.7 kJ

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Definitions:

Maya Architecture

A style of ancient architecture developed by the Maya civilization in Mesoamerica, characterized by elaborate ceremonial complexes, temples, and palaces built with precise astronomical alignments.

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The office or position of a priest, who performs religious rites, acts as a mediator between the divine and humans, and oversees religious ceremonies.

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A person who governs or commands a country, region, or group, often with a hereditary or elected position of power.

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