7. The standard molar enthalpy of formation of a compound represents a. The thermal energy released when 1 mol of a compound decomposes b. The enthalpy change when 1 mol of a compound is formed from its element at standard conditions c. The enthalpy change when I mol of an element changes to a compound d. The heat energy released when 1 mol of a compound undergoes complete combustion e. The enthalpy change when 1 mol of a compound undergoes phase change 8. Which combination of statement is correct for the reaction below 2NO2(g) → N2(g) + 202(g) + 66.4 kJ a. Exothermic, potential energy greater in reactants b. Exothermic, potential energy greater in products c. Endothermic, potential energy greater in products d. Endothermin, potential energy less in reactants e. Endothermic, potential energy less in products

7. The standard molar enthalpy of formation of a compound represents a. The thermal energy released when 1 mol of a compound decomposes b. The enthalpy change when 1 mol of a compound is formed from its element at standard conditions c. The enthalpy change when I mol of an element changes to a compound d. The heat energy released when 1 mol of a compound undergoes complete combustion e. The enthalpy change when 1 mol of a compound undergoes phase change 8. Which combination of statement is correct for the reaction below 2NO2(g) → N2(g) + 202(g) + 66.4 kJ a. Exothermic, potential energy greater in reactants b. Exothermic, potential energy greater in products c. Endothermic, potential energy greater in products d. Endothermin, potential energy less in reactants e. Endothermic, potential energy less in products

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...

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