When burning fuel oil in a boiler, a high...

Question 1 / 2066636ef128f7522a1c521089

Question 1 of 2066636ef128f7522a1c521089

When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because __________.

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Question 1 of 20

66636ef128f7522a1c521089

When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because __________.

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🔍 Key Concepts

• complete vs. incomplete combustion of fuel oil • relationship between CO2, CO, and heat (energy) released • role of excess air and what a high CO2 reading in stack gas usually indicates

💭 Think About

• Compare the energy (heat) released when carbon burns fully to CO2 versus partially to CO. Which one gives more heat per unit of fuel? • Think about what a high CO2 reading in the stack tells you about how much of the carbon is being fully burned versus partially burned. • Which choice correctly links high CO2 with both combustion efficiency and the relative heat output compared to forming CO?

✅ Before You Answer

• Identify which reaction is more exothermic: C + O2 → CO2 or 2C + O2 → 2CO. • Make sure the option you pick connects high CO2 with efficient combustion, not just with air quantity alone. • Eliminate any choice that suggests CO formation gives equal or more heat than CO2 formation; verify which actually releases more heat.

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Question 1 of 20

When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because __________.

efficient combustion is indicated even though the heat liberated is less than the heat produced by burning to CO

less excess air is required to produce CO2 than CO

efficient combustion is indicated and the heat liberated is equal to the heat produced by the formation of CO

more heat is liberated by the production of CO2 than CO

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Question 1 / 2066636ef128f7522a1c521089

Question 1 of 2066636ef128f7522a1c521089

When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because __________.

Back

Question 1 of 20

66636ef128f7522a1c521089

When burning fuel oil in a boiler, a high CO2 content is desired in the stack gas because __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed