The GWPs of HFOs and HCs are close to those of HCFCs.

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Prepare for the SkillCat EPA Type 2 Test with interactive flashcards and multiple-choice questions. Each question is accompanied by hints and explanations. Get ready to pass your exam!

Multiple Choice

The GWPs of HFOs and HCs are close to those of HCFCs.

Explanation:
Global Warming Potential measures how much heat a substance traps in the atmosphere over 100 years relative to CO2, depending on how long it lasts and how strongly it absorbs infrared radiation. HFOs and hydrocarbons have much lower GWPs than HCFCs: HFOs break down relatively quickly and have low radiative efficiency, giving GWPs typically in the single digits, while common hydrocarbons used as refrigerants have GWPs around 3 to 4. In contrast, HCFCs like HCFC-22 have very high GWPs, often in the thousands. So their GWPs are not close to those of HCFCs.

Global Warming Potential measures how much heat a substance traps in the atmosphere over 100 years relative to CO2, depending on how long it lasts and how strongly it absorbs infrared radiation. HFOs and hydrocarbons have much lower GWPs than HCFCs: HFOs break down relatively quickly and have low radiative efficiency, giving GWPs typically in the single digits, while common hydrocarbons used as refrigerants have GWPs around 3 to 4. In contrast, HCFCs like HCFC-22 have very high GWPs, often in the thousands. So their GWPs are not close to those of HCFCs.

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