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
100%
Transcribed Image Text:d. How much energy is needed to boil 87.0 g H₂O(1) if its enthalpy of vaporization is 2257 J/g?
energy:
e. Going from the boling point of H₂O (100 °C) to 135.0 °C is a temperature change of 35.0 °C.
How much energy is needed to heat 87.0 g H₂O(g) by 35.0 °C if its specific heat is 2.000 J/(g° C)?
energy:
Transcribed Image Text:At 1 atm, how much energy is required to heat 87.0 g H₂O(s) at -18.0 °C to H₂O(g) at 135.0 °C?
STRATEGY:
1. Calculate the energy needed for each temperature change or phase change individually.
a. the energy needed to heat 87.0 g H₂O(s) from-18.0 °C to its melting point.
b. the energy needed to melt 87.0 g H₂O(s) at its melting point.
c. the energy needed to heat 87.0 g H₂O(1) from the melting point to the boiling point.
d. the energy needed to boil 87.0 g H₂O(1) at its boiling point.
e. the energy needed to heat 87.0 g H₂O(g) from the boiling point to 135.0 °C.
2. Sum the energies from each step and convert to kilojoules.
Step 1.
a. Going from -18.0 °C to the melting point of H₂O (0 °C) is a temperature change of 18.0 °C.
How much energy is needed to heat 87.0 g H₂O(s) by 18.0 °C if its specific heat is 2.087 J/(gx °C)?
energy:
b. How much energy is needed to melt 87.0 g H₂O(s) if its enthalpy of fusion is 333.6 J/g?
energy:
c. For H₂O, going from the melting point (0 °C) to the boiling point (100 °C) is a temperature change of 100 °C. How much
energy is needed to heat 87.0 g H₂O(1) by 100 °C if its specific heat is 4.184 J/(g -* C)?
energy:
Expert Solution
Step 1
We are asked to calculate energy to convert 87.0g H2O(s) at -18.0C to H2O(g) at 135.0C
Step by step
Solved in 2 steps
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