What is the correct ascending order of the global warming gradient (GWP) of…
2023
What is the correct ascending order of the global warming gradient (GWP) of the following gases?
(A) Nitrous oxide (N2O)
(B) Carbon dioxide (CO2)
(C) Methane (CH4)
(D) Chlorofluorocarbons (CFCs)
Select the correct answer from the options given below:
- A.
(A), (B), (C), (D)
- B.
(A), (C), (B), (D)
- C.
(B), (A), (C), (D)
- D.
(B), (C), (A), (D)
Attempted by 7 students.
Show answer & explanation
Correct answer: D
Global Warming Potential (GWP) measures the heat-trapping ability of greenhouse gases relative to carbon dioxide ($CO_2$), which is the baseline with a GWP of 1. Methane ($CH_4$) has a GWP of approximately 28-30. Nitrous oxide ($N_2O$) has a significantly higher GWP around 265-273. Chlorofluorocarbons (CFCs) possess the highest GWP values in this list, often ranging from thousands to tens of thousands. Therefore, the correct ascending order is $CO_2$, $CH_4$, $N_2O$, CFCs.