Cu(s) + 0.5 0; (g) --> CuO (s) DH - -275 kJ CuO(s) + Cu (s) --> Cu,O (s) DH = +64 kJ Calculate DH for the reaction 2Cu,0 (s) + O; (g) 4CUO (s) O -678 kJ +211 kJ -211 kJ -339 kJ +678 kJ O Question 25 If a system absorbs 58 kJ of heat and has 125 kJ of work done on it, what is the DE? O 129 kJ +183 kJ O -67 kJ -183 kJ 67 kJ
Cu(s) + 0.5 0; (g) --> CuO (s) DH - -275 kJ CuO(s) + Cu (s) --> Cu,O (s) DH = +64 kJ Calculate DH for the reaction 2Cu,0 (s) + O; (g) 4CUO (s) O -678 kJ +211 kJ -211 kJ -339 kJ +678 kJ O Question 25 If a system absorbs 58 kJ of heat and has 125 kJ of work done on it, what is the DE? O 129 kJ +183 kJ O -67 kJ -183 kJ 67 kJ
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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just need the correct answers for these :) thank you
![Given:
Cu(s) + 0.5 O; (g) --> CuO (s) DH = -275 kJ
CuO(s) + Cu (s) --> Cu,O (s) DH = +64 kJ
Calculate DH for the reaction
2Cu,O (s) + 0, (g) -> 4Cuo (s)
-678 kJ
+211 kJ
O -211 kJ
-339 kJ
+678 kJ
Question 25
If a system absorbs 58 kJ of heat and has 125 kJ of work done on it, what is the DE?
129 kJ
O +183 kJ
-67 kJ
O-183 kJ
67 kJ](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdea307bb-cc3d-4869-bfe2-9b39b2d9f907%2F79825ae1-0404-4d14-b583-1c808f6b6ebb%2Fz67sc1_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Given:
Cu(s) + 0.5 O; (g) --> CuO (s) DH = -275 kJ
CuO(s) + Cu (s) --> Cu,O (s) DH = +64 kJ
Calculate DH for the reaction
2Cu,O (s) + 0, (g) -> 4Cuo (s)
-678 kJ
+211 kJ
O -211 kJ
-339 kJ
+678 kJ
Question 25
If a system absorbs 58 kJ of heat and has 125 kJ of work done on it, what is the DE?
129 kJ
O +183 kJ
-67 kJ
O-183 kJ
67 kJ
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