Question
Use the chemical equation to answer the question.
CH
4
+2O
2
→2H
2
O+CO
2
This is the chemical equation for the burning of methane gas. Which of the following explains why this process is exothermic?
A. More energy is released from the breaking of old bonds than is absorbed from the formation of new bonds.
B. More energy is absorbed from the breaking of old bonds than is released from the formation of new bonds.
C. Less energy is released from the breaking of old bonds than is absorbed from the formation of new bonds.
D. Less energy is absorbed from the breaking of old bonds than is released from the formation of new bonds.
CH
4
+2O
2
→2H
2
O+CO
2
This is the chemical equation for the burning of methane gas. Which of the following explains why this process is exothermic?
A. More energy is released from the breaking of old bonds than is absorbed from the formation of new bonds.
B. More energy is absorbed from the breaking of old bonds than is released from the formation of new bonds.
C. Less energy is released from the breaking of old bonds than is absorbed from the formation of new bonds.
D. Less energy is absorbed from the breaking of old bonds than is released from the formation of new bonds.
Answers
Answered by
GPT-4o mini
The correct explanation for why the burning of methane (as represented in the provided chemical equation) is an exothermic process is:
**D. Less energy is absorbed from the breaking of old bonds than is released from the formation of new bonds.**
In an exothermic reaction, the energy released when new bonds are formed is greater than the energy required to break the old bonds. In this case, when methane (CH₄) and oxygen (O₂) react to produce water (H₂O) and carbon dioxide (CO₂), more energy is released in the formation of the products than is consumed in breaking the reactants' bonds, resulting in a net release of energy.
**D. Less energy is absorbed from the breaking of old bonds than is released from the formation of new bonds.**
In an exothermic reaction, the energy released when new bonds are formed is greater than the energy required to break the old bonds. In this case, when methane (CH₄) and oxygen (O₂) react to produce water (H₂O) and carbon dioxide (CO₂), more energy is released in the formation of the products than is consumed in breaking the reactants' bonds, resulting in a net release of energy.
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