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Which of the following processes is exothermic?
Which of the following processes is exothermic?
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Practice Questions
1 question
Q1
Which of the following processes is exothermic?
Melting of ice
Dissolving ammonium nitrate in water
Combustion of methane
Evaporation of water
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The combustion of methane is an exothermic process, releasing heat.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following processes is exothermic?
Solution:
The combustion of methane is an exothermic process, releasing heat.
Steps: 5
Show Steps
Step 1: Understand what an exothermic process is. An exothermic process is one that releases heat into the surroundings.
Step 2: Identify the process in the question. The combustion of methane is a chemical reaction where methane (CH4) reacts with oxygen (O2).
Step 3: Recognize that during combustion, bonds in methane and oxygen break, and new bonds form in carbon dioxide (CO2) and water (H2O).
Step 4: Note that when these new bonds form, energy is released in the form of heat.
Step 5: Conclude that since the combustion of methane releases heat, it is an exothermic process.
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