When subjected to high heat from a open...

Question 1 / 205eccef9dbacbc34ba4d45f27

Question 1 of 205eccef9dbacbc34ba4d45f27

When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?

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Question 1 of 20

5eccef9dbacbc34ba4d45f27

When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?

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🔍 Key Concepts

• Relationship between chlorine-containing refrigerants and formation of phosgene gas when exposed to flame or very high heat • Basic chemical makeup of each option: which contain carbon, chlorine, and sometimes hydrogen vs. simple gases like CO₂ • Typical safety warnings in older refrigeration manuals about torch work and smoking near certain refrigerants

💭 Think About

• First, think about which of these refrigerants are simple gases (like CO₂ or SO₂) versus organic compounds that contain carbon and halogens (like chlorine). Which type is more likely to decompose into phosgene? • Consider which refrigerants have historically required strict precautions about welding, brazing, or open flames because of the risk of toxic decomposition products. • Ask yourself: which of these refrigerants’ names or designations is associated with chlorinated hydrocarbons used in older refrigeration systems?

✅ Before You Answer

• Identify which options contain chlorine in their formula; phosgene formation is associated with chlorine-containing compounds exposed to high heat. • Confirm from your study materials which refrigerant types are known as halocarbons or chlorofluorocarbons (CFCs/HCFCs). • Before choosing, eliminate any choices that are inorganic gases without carbon–chlorine bonds, since those will not decompose into phosgene.

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Question 1 of 20

When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?

CO₂

Methyl chloride

R-22

Sulphur dioxide

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Question 1 / 205eccef9dbacbc34ba4d45f27

Question 1 of 205eccef9dbacbc34ba4d45f27

When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?

Back

Question 1 of 20

5eccef9dbacbc34ba4d45f27

When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?

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