Calculate the standard enthalpy change for the reaction 2A +B 20+2D Use the following data: AH (kJ/mol) Substance A. -253 B -391 179 -489 Express your answer in kilojoules. ► View Available Hint(s) AH = 277 kJ Prevlous AnBwera V Correct Part B For the reaction given in Part A, how much heat is absorbed when 3.00 mol of A reacts?

Calculate the standard enthalpy change for the reaction 2A +B 20+2D Use the following data: AH (kJ/mol) Substance A. -253 B -391 179 -489 Express your answer in kilojoules. ► View Available Hint(s) AH = 277 kJ Prevlous AnBwera V Correct Part B For the reaction given in Part A, how much heat is absorbed when 3.00 mol of A reacts?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 96QRT

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