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Which of the following statements about internal energy are true?

Which of the following statements about internal energy are true?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question:** Which of the following statements about internal energy are true? I. Internal energy is increased by withdrawing heat from the system II. Internal energy is increased by adding heat to the system III. Internal energy is decreased by volume expansion IV. Internal energy is decreased by volume compression V. Internal energy of a system is the sum of all forms of energy in the system. **Options:** - ○ II, IV, and V - ○ I, III, and V - ● II, III, and V - ○ I and IV - ○ II and IV **Explanation:** This multiple-choice question is designed to test the understanding of the principles governing internal energy within thermodynamic systems. Analyzing each statement: - **Statement I** is false. Withdrawing heat generally decreases internal energy. - **Statement II** is true. Adding heat increases internal energy. - **Statement III** is true. Volume expansion can lead to a decrease in internal energy, as work is done by the system. - **Statement IV** is false. Volume compression typically increases internal energy, as work is done on the system. - **Statement V** is true. Internal energy encompasses all forms of energy within the system. The correct answer is "II, III, and V."
Transcribed Image Text:**Question:** Which of the following statements about internal energy are true? I. Internal energy is increased by withdrawing heat from the system II. Internal energy is increased by adding heat to the system III. Internal energy is decreased by volume expansion IV. Internal energy is decreased by volume compression V. Internal energy of a system is the sum of all forms of energy in the system. **Options:** - ○ II, IV, and V - ○ I, III, and V - ● II, III, and V - ○ I and IV - ○ II and IV **Explanation:** This multiple-choice question is designed to test the understanding of the principles governing internal energy within thermodynamic systems. Analyzing each statement: - **Statement I** is false. Withdrawing heat generally decreases internal energy. - **Statement II** is true. Adding heat increases internal energy. - **Statement III** is true. Volume expansion can lead to a decrease in internal energy, as work is done by the system. - **Statement IV** is false. Volume compression typically increases internal energy, as work is done on the system. - **Statement V** is true. Internal energy encompasses all forms of energy within the system. The correct answer is "II, III, and V."
Expert Solution
Step 1: Write down the definition of internal energy

Internal energy of a system is defined as the total sum of all the energy of a particular system.

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