Why can CFC or HCFC refrigerants leaking...

Question 1 / 270705eccef9dbacbc34ba4d45f35

Question 1 of 270705eccef9dbacbc34ba4d45f35

Why can CFC or HCFC refrigerants leaking into a confined space or in limited surroundings cause suffocation?

Question 1 of 27070

Why can CFC or HCFC refrigerants leaking into a confined space or in limited surroundings cause suffocation?

🔍 Key Concepts

• Density of common CFC/HCFC refrigerants vs. air • Behavior of gases in confined spaces • How oxygen can be displaced without being toxic itself

💭 Think About

• Think about where a heavy gas will collect if it leaks in a small, low-ventilated space. • Does a gas have to be poisonous to cause suffocation, or can it cause harm another way? • Which option describes a physical property of the gas that affects how much oxygen you can actually breathe?

✅ Before You Answer

• Check whether most CFC/HCFC refrigerants are heavier or lighter than air. • Consider which choices describe displacement of oxygen versus irritation or odor effects. • Verify which explanation matches typical confined space hazards described in safety training.

Question 1 of 27070

Why can CFC or HCFC refrigerants leaking into a confined space or in limited surroundings cause suffocation?

Refrigerants lighter than air will rise.

Refrigerants are heavier than air and displace oxygen.

Refrigerants contain an acidic substance.

Refrigerants obnoxious odor prevents breathing.