What Is the Change in Internal Energy of the System

question 30

Multiple Choice

What is the change in internal energy of the system (ΔU) if 71 kJ of heat energy is absorbed by the system and 12 kJ of work is done on the system for a certain process?

• A)83 kJ
• B)59 kJ
• C)71 kJ
• D)-83 kJ
• E)-59 kJ

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Definitions:

Attachment

The emotional bond that forms between infants and their caregivers, which influences their social and emotional development.

Excessive Preoccupation

A disproportionately intense or obsessive focus on a specific subject, task, or thought, often interfering with everyday functioning.

Divorce

The legal dissolution of a marriage by a court or other competent body.

Secure Attachment

A healthy emotional bond formed in childhood, characterized by trust, safety, and a sense of being understood by caregivers.