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...
Related questions
Question
![The heats of formation of aluminium oxide and iron (I) oxide are -1664k)
and - 815k respectively.
4.
(a)
Calculate the AH for the reaction:
Al (s) + 4Fe;0s (s) + Fe(s) + %Al:03(s)
4 Al (s) + 3 0: (R) →2 Al;O» (s)
4 Fe (s) +3 0: (R) 2 Fe:0s (s)
AH = -1664k)
AH=
-815k
[4 AI (3) + 3 0:() +2 Als0s (3) ]x %
[2 Fe:0s (1) 4 Fe (1) +3 0 () ]x %
1664k| x %
815k x%
Al (s) % 0: ()- Al:0, (1)
4 Fe;0s (s) Fe (*) + % O (e)
416k
203.75k
Al (s) • %Fe:0s(s) → Fe(s) . %Al:0s(s)
AH - 212.25k)
(b)
The mass of the Al need to produce 1 k of energy.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6802cc26-8f8d-420f-814a-66b722822312%2F019d020e-cf3c-46f7-8312-d16de4d71db4%2Fcqk965s_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The heats of formation of aluminium oxide and iron (I) oxide are -1664k)
and - 815k respectively.
4.
(a)
Calculate the AH for the reaction:
Al (s) + 4Fe;0s (s) + Fe(s) + %Al:03(s)
4 Al (s) + 3 0: (R) →2 Al;O» (s)
4 Fe (s) +3 0: (R) 2 Fe:0s (s)
AH = -1664k)
AH=
-815k
[4 AI (3) + 3 0:() +2 Als0s (3) ]x %
[2 Fe:0s (1) 4 Fe (1) +3 0 () ]x %
1664k| x %
815k x%
Al (s) % 0: ()- Al:0, (1)
4 Fe;0s (s) Fe (*) + % O (e)
416k
203.75k
Al (s) • %Fe:0s(s) → Fe(s) . %Al:0s(s)
AH - 212.25k)
(b)
The mass of the Al need to produce 1 k of energy.
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