1. Calculate w for a system that absorbs 260 kJ of heat and for which AE = 157 kJ. Is the work done on or by the system?

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Use question 1 on the thermochemistry worksheet to answer
nasik
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Section Number:
Thermochemistry Worksheet
1. Calculate w for a system that absorbs 260 kJ of heat and for which AE = 157 kJ. Is the
work done on or by the system?
2. What is the work associated with the expansion of a gas from 4 L to 6 L under an
external pressure of 1.8 atm pressure?
3. Complete the following chart:
Type of Reaction
Sign of AH
Which has more energy:
reactants or products?
Exothermic
Endothermic
Make enthalpy diagrams for the two chemical reactions from above, showing clearly the amount of
energy released or gained.
Transcribed Image Text:nasik PRINT FULL NAME: Section Number: Thermochemistry Worksheet 1. Calculate w for a system that absorbs 260 kJ of heat and for which AE = 157 kJ. Is the work done on or by the system? 2. What is the work associated with the expansion of a gas from 4 L to 6 L under an external pressure of 1.8 atm pressure? 3. Complete the following chart: Type of Reaction Sign of AH Which has more energy: reactants or products? Exothermic Endothermic Make enthalpy diagrams for the two chemical reactions from above, showing clearly the amount of energy released or gained.
Session 69484057
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1
3
4.
6
multiple choice question
Refer to the worksheet for week 13 for this quiz. Refer to question 1. What is the work done by the system?
A.
417 kJ
В.
157 kJ
С.
-260 kJ
D.
-103 kJ
O Send a message to the instructor
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Transcribed Image Text:Session 69484057 Jump to 1 3 4. 6 multiple choice question Refer to the worksheet for week 13 for this quiz. Refer to question 1. What is the work done by the system? A. 417 kJ В. 157 kJ С. -260 kJ D. -103 kJ O Send a message to the instructor < Join another session ALWAYS LEARNING PEARSON Copyright © 2020 Pearson or its affiliate(s). All rights reserved. Help | Diagnostics | Legal Notice | Privacy | Accessibility | Permissions | Support MacBook Pro
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