Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
Bartleby Related Questions Icon

Related questions

Question
100%
**Understanding Enthalpy Change Calculation Using Hess's Law**

To find the enthalpy change (ΔH) for the following reaction:

\[ \text{Equation 4:} \quad 2 \, \text{N}_2(g) + 5 \, \text{O}_2(g) \rightarrow 2 \, \text{N}_2\text{O}_5(g) \quad \Delta H = \, ??????? \]

We need to use the given equations and their enthalpy changes:

1. **Equation 1:** 
   \[ 2 \, \text{H}_2\text{O}(l) \rightarrow 2 \, \text{H}_2(g) + \text{O}_2(g) \quad \Delta H = 571.6 \, \text{kJ} \]

2. **Equation 2:**
   \[ \text{N}_2\text{O}_5(g) + \text{H}_2\text{O}(l) \rightarrow 2 \, \text{HNO}_3(l) \quad \Delta H = -73.7 \, \text{kJ} \]

3. **Equation 3:**
   \[ 2 \, \text{H}_2(g) + 6 \, \text{O}_2(g) + 2 \, \text{N}_2(g) \rightarrow 4 \, \text{HNO}_3(l) \quad \Delta H = -696.4 \, \text{kJ} \]

### Steps to Determine ΔH for Equation 4:

To calculate the ΔH for Equation 4, you must manipulate these equations following Hess's Law. Here are your options:

- Flip Equation 1 only
- Flip Equation 2 only
- Flip Equation 3 only
- Flip Equation 1 and Equation 2 only
- Flip Equation 1 and Equation 3 only
- Flip Equation 2 and Equation 3 only
- Flip no equation

Consider the stoichiometry and the resulting target equation to choose the correct options.
expand button
Transcribed Image Text:**Understanding Enthalpy Change Calculation Using Hess's Law** To find the enthalpy change (ΔH) for the following reaction: \[ \text{Equation 4:} \quad 2 \, \text{N}_2(g) + 5 \, \text{O}_2(g) \rightarrow 2 \, \text{N}_2\text{O}_5(g) \quad \Delta H = \, ??????? \] We need to use the given equations and their enthalpy changes: 1. **Equation 1:** \[ 2 \, \text{H}_2\text{O}(l) \rightarrow 2 \, \text{H}_2(g) + \text{O}_2(g) \quad \Delta H = 571.6 \, \text{kJ} \] 2. **Equation 2:** \[ \text{N}_2\text{O}_5(g) + \text{H}_2\text{O}(l) \rightarrow 2 \, \text{HNO}_3(l) \quad \Delta H = -73.7 \, \text{kJ} \] 3. **Equation 3:** \[ 2 \, \text{H}_2(g) + 6 \, \text{O}_2(g) + 2 \, \text{N}_2(g) \rightarrow 4 \, \text{HNO}_3(l) \quad \Delta H = -696.4 \, \text{kJ} \] ### Steps to Determine ΔH for Equation 4: To calculate the ΔH for Equation 4, you must manipulate these equations following Hess's Law. Here are your options: - Flip Equation 1 only - Flip Equation 2 only - Flip Equation 3 only - Flip Equation 1 and Equation 2 only - Flip Equation 1 and Equation 3 only - Flip Equation 2 and Equation 3 only - Flip no equation Consider the stoichiometry and the resulting target equation to choose the correct options.
**Consider the problem below:**

*(Equation 1)* \(2 \, \text{H}_2\text{O}_{(l)} \rightarrow 2 \, \text{H}_2_{(g)} + \text{O}_2_{(g)} \)  \(\Delta H = 571.6 \, \text{kJ}\)

*(Equation 2)* \(\text{N}_2\text{O}_5_{(g)} + \text{H}_2\text{O}_{(l)} \rightarrow 2 \, \text{HNO}_3_{(l)} \)  \(\Delta H = -73.7 \, \text{kJ}\)

*(Equation 3)* \(2 \, \text{H}_2_{(g)} + 6 \, \text{O}_2_{(g)} + 2 \, \text{N}_2_{(g)} \rightarrow 4 \, \text{HNO}_3_{(l)} \)  \(\Delta H = -696.4 \, \text{kJ}\)

*(Equation 4)* \(2 \, \text{N}_2_{(g)} + 5 \, \text{O}_2_{(g)} \rightarrow 2 \, \text{N}_2\text{O}_5_{(g)} \)  \(\Delta H = ???????\)

To find \(\Delta H\) for equation 4, you must:

- **Options:**
  - Flip equation 1 only
  - Flip equation 2 only
  - Flip equation 3 only
expand button
Transcribed Image Text:**Consider the problem below:** *(Equation 1)* \(2 \, \text{H}_2\text{O}_{(l)} \rightarrow 2 \, \text{H}_2_{(g)} + \text{O}_2_{(g)} \) \(\Delta H = 571.6 \, \text{kJ}\) *(Equation 2)* \(\text{N}_2\text{O}_5_{(g)} + \text{H}_2\text{O}_{(l)} \rightarrow 2 \, \text{HNO}_3_{(l)} \) \(\Delta H = -73.7 \, \text{kJ}\) *(Equation 3)* \(2 \, \text{H}_2_{(g)} + 6 \, \text{O}_2_{(g)} + 2 \, \text{N}_2_{(g)} \rightarrow 4 \, \text{HNO}_3_{(l)} \) \(\Delta H = -696.4 \, \text{kJ}\) *(Equation 4)* \(2 \, \text{N}_2_{(g)} + 5 \, \text{O}_2_{(g)} \rightarrow 2 \, \text{N}_2\text{O}_5_{(g)} \) \(\Delta H = ???????\) To find \(\Delta H\) for equation 4, you must: - **Options:** - Flip equation 1 only - Flip equation 2 only - Flip equation 3 only
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Similar questions
Recommended textbooks for you
Text book image
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Text book image
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Text book image
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY