82/234578876523443498956453211324654/ 28 37 48 56 95 87 72 23 55 39 29 19 28 18
ID: 1866660 • Letter: 8
Question
82/234578876523443498956453211324654/ 28 37 48 56 95 87 72 23 55 39 29 19 28 18 16 23 43 41 71 95%?
Factory A and B produce four GHGs (A, B, C, and D) as follows.
Mass of GHGs (tons)
Factory A
Factory B
GHG A
GHG B
GHG C
GHG D
If the global warming potentials of GHG A, B, C, and D are 1, 12, 14, and 114, respectively. Which more contributed to global warming?
A. Factory A B. Factory B C. Factory A and B had the same contributions
D. We cannot make a decision due to inadequate conditions
Mass of GHGs (tons)
Factory A
Factory B
GHG A
GHG B
GHG C
GHG D
A: 3498
B: 3022
Mass of GHGs (tons)
Factory A
Factory B
GHG A
110 200GHG B
120 80GHG C
17 19GHG D
15 14Explanation / Answer
Global Warming potential (GWP) provides a measure of how much a greenhouse gas gets trapped in the atmosphere. The more the GWP, more the given mass of gas warms the earth and more is the contribution to global warming.
GWP is generally given per tonne of gas.
Mass of GHG (tonnes)
Factory A
Factory B
GHG A (GWP=1)
110
200
GHG B (GWP=12)
120
80
GHG C (GWP=14)
17
19
GHG D (GWP=114)
15
14
Total global warming potential of a gas= mass x GWP
Total global warming potential of a given factory = GWP of GHG A x Mass of GHG A + GWP of GHG B x Mass of GHG B + GWP of GHG C x Mass of GHG C + GWP of GHG D x Mass of GHG D
Total global warming potential of factory A = 110 x 1 + 120 x 12 + 17 x 14 + 15 x 114 = 3498
Total global warming potential of factory B = 200 x 1 + 80 x 12 + 19 x 14 + 14 x 114 = 3022
Therefore, Factory A will contribute more to the global warming. (Option A is correct)
Mass of GHG (tonnes)
Factory A
Factory B
GHG A (GWP=1)
110
200
GHG B (GWP=12)
120
80
GHG C (GWP=14)
17
19
GHG D (GWP=114)
15
14
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.