Homework Help is Here – Start Your Trial Now!
Science
Chemistry
When 1 mol of a fuel is burned at constant pressure, it produces 3452 kJ of heat and does 11 kJ of work. What are the values of ΔΕ and ΔΗ?

When 1 mol of a fuel is burned at constant pressure, it produces 3452 kJ of heat and does 11 kJ of work. What are the values of ΔΕ and ΔΗ?

Chemistry
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...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question
100%
Can you please do question 1
1. When 1 mol of a fuel is burned at constant pressure, it produces 3452 kJ of heat and does 11 kJ of work. What are the values of ΔΕ and ΔΗ? 2. A gas is compressed from an initial volume of 5.55 L to a final volume of 1.22L at an external pressure of 1.00 atm. During the compression, 124 J of heat are released. What is the AE (in J)? 3. A piece of copper metal whose mass is 3.45 g is heated to 95.0°C and then dropped onto a calorimeter made of ice at 0.0°C. As the metal cools to 0.0°C, 0.372 g of the ice melts (AH (water)=6.01 kJ/mol). From this experiment, find the molar heat capacity (in J/°C*mol) of the copper. 4. In order to measure the enthalpy change for the reaction that occurs in instant cold packs used by athletes, 1.25 g of NHNO, is dissolved in enough water to make 25.0 mL of solution. Th initial temperature is 25.8°C and the fina temperature is 21.9°C. Calculate the AH for the dissolution reaction below in kJ/mol. Assume that the specific heat capacity of the solution is 4.18 J/g*°C and that its density 1.00 g/mL and that the calorimeter itself absorbs a negligible amount of heat. NH4NO3(s) à NH4+ (aq) + NO3(aq) 5. When 0.514 g of biphenyl (CH) undergoes combustion in a bomb calorimeter, the temperature rises from 25.8°C to 29.4°C. Find the AE for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.86 kJ/°C. 6. Use Hess's Law and the following data: Sro(s) à Sr (s) + 1/2O₂(g) SrO(s)+ CO₂(g) à SrCO3(s) 2 CO₂(g) à 2 C(graphite) + 2 O₂(g) AH°= +592 kJ AH°= -234kJ AH°=+788 kJ to determine the standard heat of formation AH (in kJ) for strontium carbonate (SrCO3). Strontium carbonate emits a brilliant red colour in flames and due to its low cost, is used in fireworks.
Transcribed Image Text:1. When 1 mol of a fuel is burned at constant pressure, it produces 3452 kJ of heat and does 11 kJ of work. What are the values of ΔΕ and ΔΗ? 2. A gas is compressed from an initial volume of 5.55 L to a final volume of 1.22L at an external pressure of 1.00 atm. During the compression, 124 J of heat are released. What is the AE (in J)? 3. A piece of copper metal whose mass is 3.45 g is heated to 95.0°C and then dropped onto a calorimeter made of ice at 0.0°C. As the metal cools to 0.0°C, 0.372 g of the ice melts (AH (water)=6.01 kJ/mol). From this experiment, find the molar heat capacity (in J/°C*mol) of the copper. 4. In order to measure the enthalpy change for the reaction that occurs in instant cold packs used by athletes, 1.25 g of NHNO, is dissolved in enough water to make 25.0 mL of solution. Th initial temperature is 25.8°C and the fina temperature is 21.9°C. Calculate the AH for the dissolution reaction below in kJ/mol. Assume that the specific heat capacity of the solution is 4.18 J/g*°C and that its density 1.00 g/mL and that the calorimeter itself absorbs a negligible amount of heat. NH4NO3(s) à NH4+ (aq) + NO3(aq) 5. When 0.514 g of biphenyl (CH) undergoes combustion in a bomb calorimeter, the temperature rises from 25.8°C to 29.4°C. Find the AE for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.86 kJ/°C. 6. Use Hess's Law and the following data: Sro(s) à Sr (s) + 1/2O₂(g) SrO(s)+ CO₂(g) à SrCO3(s) 2 CO₂(g) à 2 C(graphite) + 2 O₂(g) AH°= +592 kJ AH°= -234kJ AH°=+788 kJ to determine the standard heat of formation AH (in kJ) for strontium carbonate (SrCO3). Strontium carbonate emits a brilliant red colour in flames and due to its low cost, is used in fireworks.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 8 images

SEE SOLUTIONCheck out a sample Q&A here
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.
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
SEE MORE TEXTBOOKS