4) The table below contains thermodynamic values for water (H20) and for methane (CHA). Water Methane Cs, solid Cs, liquid Cs, gas AH vaporization | AH fusion 2.01 J/g°C 4.18 J/g°C 2.09 J/°C 2,260 J/g 333 J/g Not known 1.64 J/g°C 1.11 J/g°C 255 J/g 34.3 J/g a. Considering water, why is the enthalpy of vaporization higher than the enthalpy of fusion? b. Why is the enthalpy of vaporization much higher for water than for methane? c. Use the values in the table to below determine how much heat is needed to heat 100 g of water that starts at room temperature, 21.5 °C to 115 °C. Show

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
### Transcription and Explanation:

The table and text below provide thermodynamic values for water (H₂O) and methane (CH₄):

|                     | **Water**    | **Methane**    |
|---------------------|--------------|----------------|
| **Cs, solid**       | 2.01 J/g°C   | Not known      |
| **Cs, liquid**      | 4.18 J/g°C   | 1.64 J/g°C     |
| **Cs, gas**         | 2.09 J/g°C   | 1.11 J/g°C     |
| **ΔH vaporization** | 2,260 J/g    | 255 J/g        |
| **ΔH fusion**       | 333 J/g      | 34.3 J/g       |

#### Questions:

a. Considering water, why is the enthalpy of vaporization higher than the enthalpy of fusion?

b. Why is the enthalpy of vaporization much higher for water than for methane?

c. Use the values in the table to determine how much heat is needed to heat 100 g of water that starts at room temperature, 21.5 °C to 115 °C. Show your work.

---

#### Explanation of the Table:
- **Cs, solid, liquid, gas**: These are specific heat capacities of water and methane in different states. It indicates the amount of heat required to raise the temperature of a unit mass by one degree Celsius.
  
- **ΔH vaporization**: Indicates the amount of energy needed to convert one gram of substance from liquid to gas at its boiling point.
  
- **ΔH fusion**: Represents the energy required to convert one gram of solid into liquid at its melting point.

This table can be used to understand the thermodynamic properties of water and methane, as well as to solve problems involving heating, melting, or vaporizing these substances.
Transcribed Image Text:### Transcription and Explanation: The table and text below provide thermodynamic values for water (H₂O) and methane (CH₄): | | **Water** | **Methane** | |---------------------|--------------|----------------| | **Cs, solid** | 2.01 J/g°C | Not known | | **Cs, liquid** | 4.18 J/g°C | 1.64 J/g°C | | **Cs, gas** | 2.09 J/g°C | 1.11 J/g°C | | **ΔH vaporization** | 2,260 J/g | 255 J/g | | **ΔH fusion** | 333 J/g | 34.3 J/g | #### Questions: a. Considering water, why is the enthalpy of vaporization higher than the enthalpy of fusion? b. Why is the enthalpy of vaporization much higher for water than for methane? c. Use the values in the table to determine how much heat is needed to heat 100 g of water that starts at room temperature, 21.5 °C to 115 °C. Show your work. --- #### Explanation of the Table: - **Cs, solid, liquid, gas**: These are specific heat capacities of water and methane in different states. It indicates the amount of heat required to raise the temperature of a unit mass by one degree Celsius. - **ΔH vaporization**: Indicates the amount of energy needed to convert one gram of substance from liquid to gas at its boiling point. - **ΔH fusion**: Represents the energy required to convert one gram of solid into liquid at its melting point. This table can be used to understand the thermodynamic properties of water and methane, as well as to solve problems involving heating, melting, or vaporizing these substances.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

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
  • SEE MORE 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