Directions: Solve the following word problem. Use a separate paper for your solution and box the final answer. 1. A system releases 125 kJ of heat while 104 kJ of work is done on the system. Calculate the change in internal energy (in kJ). 2. The work done when the gas is compressed in a cylinder is 462 J. During this process, there is a heat transfer of 128 J from the gas to the surroundings. Calculate the energy change for this process. 3. A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 73 J of heat while 35 J of work is done on it. Step 2: The system absorbs 35 J of heat while performing 72 J of work. Calculate the change in internal energy for the overall process (in J). Directions: Answer the following word problems. Write your answer on your answer sheet. 1. Calculate AE for each of the following cases: Q- + 51 kJ, W - - 15 kJ Q- + 100. kJ, w -- 65 kJ Q-- 65 kJ, W - - 20 kJ In which of these cases does the system do work on the surroundings? 2. Calculate AE for each of the following: Q--47 kJ, W - +88 kJ Q- +82 kJ, W - +47 kJ Q- +47 kJ, W -0 In which of these cases do the surroundings do work on the system?

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
Directions: Solve the following word problem. Use a separate paper for your solution
and box the final answer.
1. A system releases 125 kJ of heat while 104 kJ of work is done on the
system. Calculate the change in internal energy (in kJ).
2. The work done when the gas is compressed in a cylinder is 462 J.
During this process, there is a heat transfer of 128 J from the gas to
the surroundings. Calculate the energy change for this process.
3. A system undergoes a process consisting of the following two steps:
Step 1: The system absorbs 73 J of heat while 35 J of work is done on
it.
Step 2: The system absorbs 35 J of heat while performing 72 Jof work.
Calculate the change in internal energy for the overall process (in J).
Directions: Answer the following word problems. Write your answer on your answer sheet.
1. Calculate AE for each of the following cases:
Q- + 51 kJ, W -- 15 kJ
Q- + 100. kJ, W - - 65 kJ
Q-- 65 kJ, W - - 20 kJ
In which of these cases does the system do work on the surroundings?
2. Calculate AE for each of the following:
Q--47 kJ, W - +88 kJ
Q- +82 kJ, W - +47 kJ
Q- +47 kJ, W - 0
In which of these cases do the surroundings do work on the system?
Assessment
Direuuons: Choose the letter of the correct answer. Write your answer on your
answer sheet.
1. The 1* Law of Thermodynamics is, basically, the same as which law
from Physics 1?
A. Newton's First Law
C. Newton's Second Law D. Law of Conservation of Momentum
B. Law of Conservation of Mass
2. What is the equation for the first law of thermodynamics?
A. U- Q + W
C.U-Q-W
3. According to the first law of thermodynamics,
A. Total energy of a system remains constant
B. U--Q + W
D. U+ Q + W -0
B. Work done by a system is equal to the heat transferred by the
system
C. Total internal energy of a system during a process remains
constant
D. None of the above
4. Which of the following properties represent the energy in storage?
A. Work
В. Неat
C. Pressure
D. Internal Energy
5. What quantities appear in the First Law of Thermodynamics?
A. work, heat, entropy
C. force, mass, acceleration
B. enthalpy, entropy, heat
D. work, heat, thermal energy
Transcribed Image Text:Directions: Solve the following word problem. Use a separate paper for your solution and box the final answer. 1. A system releases 125 kJ of heat while 104 kJ of work is done on the system. Calculate the change in internal energy (in kJ). 2. The work done when the gas is compressed in a cylinder is 462 J. During this process, there is a heat transfer of 128 J from the gas to the surroundings. Calculate the energy change for this process. 3. A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 73 J of heat while 35 J of work is done on it. Step 2: The system absorbs 35 J of heat while performing 72 Jof work. Calculate the change in internal energy for the overall process (in J). Directions: Answer the following word problems. Write your answer on your answer sheet. 1. Calculate AE for each of the following cases: Q- + 51 kJ, W -- 15 kJ Q- + 100. kJ, W - - 65 kJ Q-- 65 kJ, W - - 20 kJ In which of these cases does the system do work on the surroundings? 2. Calculate AE for each of the following: Q--47 kJ, W - +88 kJ Q- +82 kJ, W - +47 kJ Q- +47 kJ, W - 0 In which of these cases do the surroundings do work on the system? Assessment Direuuons: Choose the letter of the correct answer. Write your answer on your answer sheet. 1. The 1* Law of Thermodynamics is, basically, the same as which law from Physics 1? A. Newton's First Law C. Newton's Second Law D. Law of Conservation of Momentum B. Law of Conservation of Mass 2. What is the equation for the first law of thermodynamics? A. U- Q + W C.U-Q-W 3. According to the first law of thermodynamics, A. Total energy of a system remains constant B. U--Q + W D. U+ Q + W -0 B. Work done by a system is equal to the heat transferred by the system C. Total internal energy of a system during a process remains constant D. None of the above 4. Which of the following properties represent the energy in storage? A. Work В. Неat C. Pressure D. Internal Energy 5. What quantities appear in the First Law of Thermodynamics? A. work, heat, entropy C. force, mass, acceleration B. enthalpy, entropy, heat D. work, heat, thermal energy
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
Thermodynamics
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