The vapor pressure of solid CO2 (dry ice) is 280. torr at −90. °C and 105 torr at −100. °C. (a) What is the value of ΔG° for the reaction CO2(s) CO2(g) at each temperature? ΔG° at −90 °C 1.52 kJ/mol ΔG° at −100 °C 2.85 kJ/mol (b) What are ΔH° and ΔS° for the reaction CO2(s) CO2(g) at these temperatures? Assume that ΔH° and ΔS° are constant over this temperature range. ΔH° 26 kJ/mol ΔS° J/K·mol need delta S not (c) A dry ice bath is used routinely in the laboratory to keep things cold. It is made by making a power of the dry ice and then mixing the powder with a solvent to make a slurry. Estimate the temperature of the dry ice bath by determining the temperature at which the vapor pressure of CO2 is 1 atm.
The vapor pressure of solid CO2 (dry ice) is 280. torr at −90. °C and 105 torr at −100. °C. (a) What is the value of ΔG° for the reaction CO2(s) CO2(g) at each temperature? ΔG° at −90 °C 1.52 kJ/mol ΔG° at −100 °C 2.85 kJ/mol (b) What are ΔH° and ΔS° for the reaction CO2(s) CO2(g) at these temperatures? Assume that ΔH° and ΔS° are constant over this temperature range. ΔH° 26 kJ/mol ΔS° J/K·mol need delta S not (c) A dry ice bath is used routinely in the laboratory to keep things cold. It is made by making a power of the dry ice and then mixing the powder with a solvent to make a slurry. Estimate the temperature of the dry ice bath by determining the temperature at which the vapor pressure of CO2 is 1 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...
Related questions
Question
The vapor pressure of solid CO2 (dry ice) is 280. torr at −90. °C and 105 torr at −100. °C.
(a) What is the value of ΔG° for the reaction CO2(s) CO2(g) at each temperature?
(b) What are ΔH° and ΔS° for the reaction CO2(s) CO2(g) at these temperatures? Assume that ΔH° and ΔS° are constant over this temperature range.
need delta S not
(c) A dry ice bath is used routinely in the laboratory to keep things cold. It is made by making a power of the dry ice and then mixing the powder with a solvent to make a slurry. Estimate the temperature of the dry ice bath by determining the temperature at which the vapor pressure of CO2 is 1 atm.
| ΔG° at −90 °C | 1.52 kJ/mol |
| ΔG° at −100 °C | 2.85 kJ/mol |
(b) What are ΔH° and ΔS° for the reaction CO2(s) CO2(g) at these temperatures? Assume that ΔH° and ΔS° are constant over this temperature range.
| ΔH° | 26 kJ/mol |
| ΔS° | J/K·mol |
(c) A dry ice bath is used routinely in the laboratory to keep things cold. It is made by making a power of the dry ice and then mixing the powder with a solvent to make a slurry. Estimate the temperature of the dry ice bath by determining the temperature at which the vapor pressure of CO2 is 1 atm.
(only need delta s part and part c please)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
Knowledge Booster
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.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY