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Which of the following refrigerants has the lowest GWP?

A. R-410A
B. R-134A
C. R-152a
D. R-744


Sagot :

To determine which refrigerant has the lowest Global Warming Potential (GWP), let's compare the GWPs of the given refrigerants:

- R-410A has a GWP of 2088.
- R-134A has a GWP of 1430.
- R-152a has a GWP of 124.
- R-744 has a GWP of 1.

From these values, we can see:

- R-410A's GWP is 2088.
- R-134A's GWP is 1430.
- R-152a's GWP is 124.
- R-744's GWP is 1.

Comparing all these values, the refrigerant with the lowest GWP is R-744, which has a GWP of just 1.

Therefore, the answer is:

D
R-744