Which of the following statements about enthalpy is false? Because E, P, and V are all state functions, H is also a state function. O Under constant pressure, AH = AE+PAV. Enthalpy is denoted H. O AH equals the heat gained or lost in a process that occurs at constant pressure. O Because AH relates to heat, the value of AH depends on the path taken between two states.

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...
icon
Related questions
icon
Concept explainers
Question
**Question:**

Which of the following statements about enthalpy is false?

**Options:**

- ○ Because \( E \), \( P \), and \( V \) are all state functions, \( H \) is also a state function.
- ○ Under constant pressure, \(\Delta H = \Delta E + P \Delta V\).
- ○ Enthalpy is denoted \( H \).
- ○ \(\Delta H\) equals the heat gained or lost in a process that occurs at constant pressure.
- ○ Because \(\Delta H\) relates to heat, the value of \(\Delta H\) depends on the path taken between two states.

**Actions:**

- [Submit]
- [Request Answer]
Transcribed Image Text:**Question:** Which of the following statements about enthalpy is false? **Options:** - ○ Because \( E \), \( P \), and \( V \) are all state functions, \( H \) is also a state function. - ○ Under constant pressure, \(\Delta H = \Delta E + P \Delta V\). - ○ Enthalpy is denoted \( H \). - ○ \(\Delta H\) equals the heat gained or lost in a process that occurs at constant pressure. - ○ Because \(\Delta H\) relates to heat, the value of \(\Delta H\) depends on the path taken between two states. **Actions:** - [Submit] - [Request Answer]
**Thermodynamics Problem: Understanding Heat and Work Sign Conventions**

**Part B**

Determine the conditions under which the quantity \( q \) (heat) will be negative and the quantity \( w \) (work) will be positive.

Options:
1. \( q \) is negative when the system loses heat to the surroundings, \( w \) is positive when the surroundings do work on the system.
2. \( q \) is negative when the system loses heat to the surroundings, \( w \) is positive when the system does work on the surroundings. *(Selected)*
3. \( q \) is negative when the system gains heat from the surroundings, \( w \) is positive when the system does work on the surroundings.
4. \( q \) is negative when the system gains heat from the surroundings, \( w \) is positive when the surroundings do work on the system.

**Current Status:**  
- Feedback: Incorrect  
- Attempts Remaining: 2

**Explanation:**

In thermodynamics, heat (\( q \)) is considered negative when it is lost from the system to its surroundings. Work (\( w \)) is considered positive when the system performs work on the surroundings. The selected option interprets these conventions but was marked incorrect, indicating a need for review.
Transcribed Image Text:**Thermodynamics Problem: Understanding Heat and Work Sign Conventions** **Part B** Determine the conditions under which the quantity \( q \) (heat) will be negative and the quantity \( w \) (work) will be positive. Options: 1. \( q \) is negative when the system loses heat to the surroundings, \( w \) is positive when the surroundings do work on the system. 2. \( q \) is negative when the system loses heat to the surroundings, \( w \) is positive when the system does work on the surroundings. *(Selected)* 3. \( q \) is negative when the system gains heat from the surroundings, \( w \) is positive when the system does work on the surroundings. 4. \( q \) is negative when the system gains heat from the surroundings, \( w \) is positive when the surroundings do work on the system. **Current Status:** - Feedback: Incorrect - Attempts Remaining: 2 **Explanation:** In thermodynamics, heat (\( q \)) is considered negative when it is lost from the system to its surroundings. Work (\( w \)) is considered positive when the system performs work on the surroundings. The selected option interprets these conventions but was marked incorrect, indicating a need for review.
Expert Solution
steps

Step by step

Solved in 4 steps with 1 images

Blurred answer
Knowledge Booster
Thermochemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY