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Revewi Constants 1 Periodic Tite Hess's law states that "the heat released or absorbed ina chemical process is the same whether the process takes place in one or in several steps. It in important to recall the tolowing rules: Caloulate the enthalpy of the reaction 2NO(o) + Olo)-2NO,(g) given the tollowing reactions and enthalpies of formation A N;(9) + O,(9)-NO,(9), AH- 33.2 kJ mol B. N (9) +02(9)--NO(9), A,H = 90.2 kJ mol 1. When two reactions are added, their enthalpy values are added 2. When a reaction is reversed, the sign of its enthalpy value changes. 3. When the ooefficients of a reaction are multipled by a factor, the enthalpy value is multiplied by that same factor Express your answer with the appropriate units. View Available Hint(s) AH". Value Units Submit Part B Calculate the enthalpy of the reaction 4B() + 30,(9)-2B, O(a) given the following pertinent information A BO(a) +3H,0()-30,(9) + BaHe(a). A,H 2035 kJ mol B. 2B(a) +3H,()B,He(9). c Ha(9) + 0,(9)-→H;O(1), D. H,0()-H3O(g). A. H +36 k) mol A, H-285 kJ mol A, H+44 kJ mol -1 Express your answer with the appropriate units. > View Available Hint(s)

Revewi Constants 1 Periodic Tite Hess's law states that "the heat released or absorbed ina chemical process is the same whether the process takes place in one or in several steps. It in important to recall the tolowing rules: Caloulate the enthalpy of the reaction 2NO(o) + Olo)-2NO,(g) given the tollowing reactions and enthalpies of formation A N;(9) + O,(9)-NO,(9), AH- 33.2 kJ mol B. N (9) +02(9)--NO(9), A,H = 90.2 kJ mol 1. When two reactions are added, their enthalpy values are added 2. When a reaction is reversed, the sign of its enthalpy value changes. 3. When the ooefficients of a reaction are multipled by a factor, the enthalpy value is multiplied by that same factor Express your answer with the appropriate units. View Available Hint(s) AH". Value Units Submit Part B Calculate the enthalpy of the reaction 4B() + 30,(9)-2B, O(a) given the following pertinent information A BO(a) +3H,0()-30,(9) + BaHe(a). A,H 2035 kJ mol B. 2B(a) +3H,()B,He(9). c Ha(9) + 0,(9)-→H;O(1), D. H,0()-H3O(g). A. H +36 k) mol A, H-285 kJ mol A, H+44 kJ mol -1 Express your answer with the appropriate units. > View Available Hint(s)

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...
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Revewi Constants 1 Periodic Title Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several stopa. It in important to recall the folowing nules: Caloulate the enthalpy of the reaction 2NO(9) + O,(9)-2NO,(9) given the tollowing reactions and enthalpies of formation A N;(9) + O,(9)-NO,(9), AH- 33.2 kJ mol B. N (9) +02(9)NO(9), A,H = 90.2 kJ mol" 1. When two reactions are added, their enthalpy values are added 2. When a reaction is reversed, the sign of its enthalpy value changes 3. When the ooefficients of a reaction are multipled by a factor, the enthalpy value is multiplied by that same factor !! Express your answer with the appropriate units. View Available Hint(s) Value Units Submit Part B Calculate the enthalpy of the reaction 4B() + 30,(9)-2B, O(a) given the following pertinent information A. BO(a) + 3H,0()-30,(9) +BaHe(a). A,H 2035 kJ mol B. 2B(a) + 3H,()B,He(9). c Ha(9) + 0,(9)-→H;O(), D. H,O(1)-H3O(g). A. H +36 k) mol A, H.-285 kJ mol A, H+44 kJ mol Express your answer with the appropriate units. > View Available Hint(s)
Transcribed Image Text:Revewi Constants 1 Periodic Title Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several stopa. It in important to recall the folowing nules: Caloulate the enthalpy of the reaction 2NO(9) + O,(9)-2NO,(9) given the tollowing reactions and enthalpies of formation A N;(9) + O,(9)-NO,(9), AH- 33.2 kJ mol B. N (9) +02(9)NO(9), A,H = 90.2 kJ mol" 1. When two reactions are added, their enthalpy values are added 2. When a reaction is reversed, the sign of its enthalpy value changes 3. When the ooefficients of a reaction are multipled by a factor, the enthalpy value is multiplied by that same factor !! Express your answer with the appropriate units. View Available Hint(s) Value Units Submit Part B Calculate the enthalpy of the reaction 4B() + 30,(9)-2B, O(a) given the following pertinent information A. BO(a) + 3H,0()-30,(9) +BaHe(a). A,H 2035 kJ mol B. 2B(a) + 3H,()B,He(9). c Ha(9) + 0,(9)-→H;O(), D. H,O(1)-H3O(g). A. H +36 k) mol A, H.-285 kJ mol A, H+44 kJ mol Express your answer with the appropriate units. > View Available Hint(s)
Bew Costanta Eriodie Tatie Hess's law atates that the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps. It is important to recall the following rules 4. AH- Value Units 1. When two reactions are added, their enthalpy values aro added 2. When a reaction is reversed, the sign of ta enthalpy valun changes. 3. When the coefficients of a reaction are multiplied by a factor, the enthalpy value is multiplied by that same tactor. Submit • Part B Calculate the enthalpy of the reaction 4B(a) + 30:(9)-2B,0,(0) given the folowing pertinent intormation: A B,Os(4) + 3H;O(G)-+30, (9) + B,H,(9), A, H = +2035 kJ mol B 28() + 3H,(9)-BHa(9), c. H, (9) + 0,(9)-H;O(1), D. H,O()-H,0(g). A, H+36 kJ mol A, H - -285 kJ mol A, H-+44 kJ mol Express your answer with the appropriate units. >View Available Hint(s) A,H. Value Units Submit Next Provide Feedback
Transcribed Image Text:Bew Costanta Eriodie Tatie Hess's law atates that the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps. It is important to recall the following rules 4. AH- Value Units 1. When two reactions are added, their enthalpy values aro added 2. When a reaction is reversed, the sign of ta enthalpy valun changes. 3. When the coefficients of a reaction are multiplied by a factor, the enthalpy value is multiplied by that same tactor. Submit • Part B Calculate the enthalpy of the reaction 4B(a) + 30:(9)-2B,0,(0) given the folowing pertinent intormation: A B,Os(4) + 3H;O(G)-+30, (9) + B,H,(9), A, H = +2035 kJ mol B 28() + 3H,(9)-BHa(9), c. H, (9) + 0,(9)-H;O(1), D. H,O()-H,0(g). A, H+36 kJ mol A, H - -285 kJ mol A, H-+44 kJ mol Express your answer with the appropriate units. >View Available Hint(s) A,H. Value Units Submit Next Provide Feedback
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