Answer:
The molar average velocity is 0.0588 cm/s
The N₂ diffusion velocity relative to the mole average velocity is -0.1428 cm/s
The molar diffusional flux of N₂ is -3.9x10⁻³
Explanation:
Given data:
T = temperature = 265 K
O₂ = 25%
N₂ = 60%
CO₂ = 15%
vO₂ = -0.084 cm/s
vN₂ = 0.12 cm/s
vCO₂ = 0.052 cm/s
The molar average velocity is equal:
The N₂ diffusion velocity relative to the molar average velocity is:
The molar diffusional flux of N₂ is:
In the dark waters just below the photic zone, because of cellular respiration, the concentration of dissolved carbon dioxide is higher relative to dissolved oxygen.
In cellular respiration living organisms use oxygen and release carbon dioxide, because there is little or no light there is no photosynthesis and oxygen is little produced.
Answer:
1,171 fluid ounces of herbicide is sufficient for 2050 square meter.
Explanation:
If 300 square feet of land is sprayed by the herbicide at the rate of 16 liquid ounce, So 1,171 fluid ounces of herbicide is enough to cover the area of 2050 square meters.
Calculation:
First convert 300 square feet into meter which is equal to 28 square meter.
16 ounces of herbicide = 28 square meter
x ounces of herbicide = 1050 square meter
by cross multiplication we get
28 x = 16 x 1050
x = 32800/ 28
x = 1171 ounces of herbicide.
A because scientific theories can be disproven. Scientific knowledge can’t be.
