p+a- |(v-nb)=nRT The van der Waals equation of state. R stands for the gas constant and n for moles of gas. The parameters a and b must be determined for each gas from experimental data. Use the van der Waals equation to answer the questions in the table below. 2 atm·L What are the units of a? mol What are the units of b? mol For carbon dioxide the numerical value of a is 3.592 and the numerical value of b is 0.0429. |atm Use the van der Waals equation to calculate the pressure of a sample of carbon dioxide at 70.0 °C with a molar volume of 4.50 L/mol. Round your answer to 3 significant digits. Use the Ideal Gas Law to calculate the pressure of the same sample under the same conditions. Round this answer to 3 significant digits also. ||atm

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
Question
### The van der Waals Equation of State

The van der Waals equation is given by:

\[
\left( p + a \frac{n^2}{V^2} \right) (V - nb) = nRT
\]

Where \( R \) is the gas constant and \( n \) is the number of moles of gas.

#### Parameters

- **\( a \)** and **\( b \)**: Specific to each gas, determined from experimental data.

### Units of Parameters

- **Units of \( a \):** \(\text{atm} \cdot \text{L}^2/\text{mol}^2\)
- **Units of \( b \):** \(\text{L/mol}\)

### Calculation Tasks

1. **Van der Waals Pressure Calculation:**
   - For carbon dioxide, \( a = 3.592 \) and \( b = 0.0429 \).
   - Calculate the pressure of a CO2 sample at 70.0 °C with a molar volume of 4.50 L/mol using the van der Waals equation. 
   - Provide your answer rounded to 3 significant digits. 
   - Final pressure: \(\boxed{\text{atm}}\)

2. **Ideal Gas Law Calculation:**
   - Calculate the pressure of the same CO2 sample under the same conditions using the Ideal Gas Law.
   - Round your answer to 3 significant digits.
   - Final pressure: \(\boxed{\text{atm}}\)

### Diagram Description

There is no graph or diagram to describe in this material. 

This content provides a foundational understanding of applying the van der Waals equation for calculating the pressure of gases, highlighting the importance of parameters \( a \) and \( b \), and compares results with the Ideal Gas Law for educational purposes.
Transcribed Image Text:### The van der Waals Equation of State The van der Waals equation is given by: \[ \left( p + a \frac{n^2}{V^2} \right) (V - nb) = nRT \] Where \( R \) is the gas constant and \( n \) is the number of moles of gas. #### Parameters - **\( a \)** and **\( b \)**: Specific to each gas, determined from experimental data. ### Units of Parameters - **Units of \( a \):** \(\text{atm} \cdot \text{L}^2/\text{mol}^2\) - **Units of \( b \):** \(\text{L/mol}\) ### Calculation Tasks 1. **Van der Waals Pressure Calculation:** - For carbon dioxide, \( a = 3.592 \) and \( b = 0.0429 \). - Calculate the pressure of a CO2 sample at 70.0 °C with a molar volume of 4.50 L/mol using the van der Waals equation. - Provide your answer rounded to 3 significant digits. - Final pressure: \(\boxed{\text{atm}}\) 2. **Ideal Gas Law Calculation:** - Calculate the pressure of the same CO2 sample under the same conditions using the Ideal Gas Law. - Round your answer to 3 significant digits. - Final pressure: \(\boxed{\text{atm}}\) ### Diagram Description There is no graph or diagram to describe in this material. This content provides a foundational understanding of applying the van der Waals equation for calculating the pressure of gases, highlighting the importance of parameters \( a \) and \( b \), and compares results with the Ideal Gas Law for educational purposes.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Mole Concept
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