World of Chemistry, 3rd edition
3rd Edition
ISBN: 9781133109655
Author: Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher: Brooks / Cole / Cengage Learning
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Chapter 10.3, Problem 1RQ
Interpretation Introduction
Interpretation: The sign of enthalpy for an exothermic reaction needs to be determined.
Concept introduction: The process in which transfer of heat energy from system to surrounding takes place is termed as exothermic process and the process in which flow of energy from surrounding to system occur is known as endothermic process.
Expert Solution & Answer
Answer to Problem 1RQ
For exothermic reaction, sign of enthalpy is negative.
Explanation of Solution
For a reaction occurring under conditions of constant pressure, change in enthalpy
The subscript p indicates that the process occurred in the condition of constant pressure. In exothermic reaction energy flows out from the system as heat so, the sign of enthalpy is negative.
Conclusion
The positive sign of enthalpy indicates endothermic reaction.
Chapter 10 Solutions
World of Chemistry, 3rd edition
Ch. 10.1 - Prob. 1RQCh. 10.1 - Prob. 2RQCh. 10.1 - Prob. 3RQCh. 10.1 - Prob. 4RQCh. 10.1 - Prob. 5RQCh. 10.1 - Prob. 6RQCh. 10.1 - Prob. 7RQCh. 10.2 - Prob. 1RQCh. 10.2 - Prob. 2RQCh. 10.2 - Prob. 3RQ
Ch. 10.2 - Prob. 4RQCh. 10.2 - Prob. 5RQCh. 10.2 - Prob. 6RQCh. 10.3 - Prob. 1RQCh. 10.3 - Prob. 2RQCh. 10.3 - Prob. 3RQCh. 10.3 - Prob. 4RQCh. 10.3 - Prob. 5RQCh. 10.4 - Prob. 1RQCh. 10.4 - Prob. 2RQCh. 10.4 - Prob. 3RQCh. 10.4 - Prob. 4RQCh. 10.4 - Prob. 5RQCh. 10.4 - Prob. 6RQCh. 10.4 - Prob. 7RQCh. 10 - Prob. 1ACh. 10 - Prob. 2ACh. 10 - Prob. 3ACh. 10 - Prob. 4ACh. 10 - Prob. 5ACh. 10 - Prob. 6ACh. 10 - Prob. 7ACh. 10 - Prob. 8ACh. 10 - Prob. 9ACh. 10 - Prob. 10ACh. 10 - Prob. 11ACh. 10 - Prob. 12ACh. 10 - Prob. 13ACh. 10 - Prob. 14ACh. 10 - Prob. 15ACh. 10 - Prob. 16ACh. 10 - Prob. 17ACh. 10 - Prob. 18ACh. 10 - Prob. 19ACh. 10 - Prob. 20ACh. 10 - Prob. 21ACh. 10 - Prob. 22ACh. 10 - Prob. 23ACh. 10 - Prob. 24ACh. 10 - Prob. 25ACh. 10 - Prob. 26ACh. 10 - Prob. 27ACh. 10 - Prob. 28ACh. 10 - Prob. 29ACh. 10 - Prob. 30ACh. 10 - Prob. 31ACh. 10 - Prob. 32ACh. 10 - Prob. 33ACh. 10 - Prob. 34ACh. 10 - Prob. 35ACh. 10 - Prob. 36ACh. 10 - Prob. 37ACh. 10 - Prob. 38ACh. 10 - Prob. 39ACh. 10 - Prob. 40ACh. 10 - Prob. 41ACh. 10 - Prob. 42ACh. 10 - Prob. 43ACh. 10 - Prob. 44ACh. 10 - Prob. 45ACh. 10 - Prob. 46ACh. 10 - Prob. 47ACh. 10 - Prob. 48ACh. 10 - Prob. 49ACh. 10 - Prob. 50ACh. 10 - Prob. 51ACh. 10 - Prob. 52ACh. 10 - Prob. 53ACh. 10 - Prob. 54ACh. 10 - Prob. 55ACh. 10 - Prob. 56ACh. 10 - Prob. 57ACh. 10 - Prob. 58ACh. 10 - Prob. 59ACh. 10 - Prob. 60ACh. 10 - Prob. 61ACh. 10 - Prob. 62ACh. 10 - Prob. 63ACh. 10 - Prob. 64ACh. 10 - Prob. 65ACh. 10 - Prob. 66ACh. 10 - Prob. 67ACh. 10 - Prob. 68ACh. 10 - Prob. 1STPCh. 10 - Prob. 2STPCh. 10 - Prob. 3STPCh. 10 - Prob. 4STPCh. 10 - Prob. 5STPCh. 10 - Prob. 6STPCh. 10 - Prob. 7STPCh. 10 - Prob. 8STPCh. 10 - Prob. 9STPCh. 10 - Prob. 10STPCh. 10 - Prob. 11STP
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