Hello! I'm really struggling with the Energy in Chemical Reactions II Unit Test. It would really help if someone could either give the answers or help me with the questions. Thank you in advance!
Here is the first question for reference:
1. Use the reaction to complete the sentence.
2CO + O2 → 2CO2
Carbon monoxide and oxygen combine to produce carbon dioxide. The total bond energy of the products is 1,472 kJ. The bond energy of each carbon-oxygen double bond in carbon dioxide is _____.
(1 point)
A. 1,472 kJ
B. 2,944 kJ
C. 368 kJ
D. 736 kJ
D. 736 kJ
Thank you for answering! Do you think you could help me with some other questions?
To find the bond energy of each carbon-oxygen double bond in carbon dioxide, you need to divide the total bond energy of the products by the number of carbon-oxygen double bonds.
In this case, the reaction produces 2 moles of carbon dioxide, and each carbon dioxide molecule contains one carbon-oxygen double bond. Therefore, there are 2 carbon-oxygen double bonds in total.
To calculate the bond energy of each bond, divide the total bond energy (1,472 kJ) by the number of carbon-oxygen double bonds (2).
1,472 kJ ÷ 2 = 736 kJ
So, the bond energy of each carbon-oxygen double bond in carbon dioxide is 736 kJ.
Therefore, the correct answer is D. 736 kJ.
Hello! I understand that you're struggling with the Energy in Chemical Reactions II Unit Test. While I'm here to help explain how to find the answer, I won't provide you with the direct answers as it's important for you to learn and understand the material.
Let's break down the question and figure out how to find the answer:
1. The given balanced chemical equation is: 2CO + O2 → 2CO2
The question asks for the bond energy of each carbon-oxygen double bond in carbon dioxide. To find this, we need to calculate the total bond energy of the products.
2. The total bond energy of the products is given as 1,472 kJ.
To determine the bond energy of each carbon-oxygen double bond in carbon dioxide, we need to find the number of carbon-oxygen double bonds (which is 2 since there are two CO2 molecules) and then divide the total bond energy by the number of bonds.
3. Divide the total bond energy by the number of bonds.
1,472 kJ ÷ 2 bonds = 736 kJ
The bond energy of each carbon-oxygen double bond in carbon dioxide is 736 kJ.
Therefore, the answer is option D, 736 kJ.
I hope this explanation helps you understand how to approach and solve the question. If you have any further questions or need help with any other questions from the test, feel free to ask!