B).Proton acceptor did that help at all
Answer: The likelihood of the offspring having freckles and not having freckles is the same.
Explanation:
Freckles are tiny brown spots on your skin, often in areas that get sun exposure. freckles are harmless. They shape as a consequence of melanin overproduction, which is responsible for skin and hair color (pigmentation). Overall, freckles derive from ultraviolet (UV) light stimulation.
Examples of Secondary Pollutants
Smog and acid rain are produced through similar sources, primarily vehicle and industry emissions. Though both result from human-caused air pollutants, there are chemical distinctions between the two.
hope it helps....!!!
Answer:
A) 1059 J/mol
B) 17,920 J/mol
Explanation:
Given that:
Cp = 29.42 - (2.170*10^-3 ) T + (0.0582*10^-5 ) T2 + (1.305*10^-8 ) T3 – (0.823*10^-11) T4
R (constant) = 8.314
We know that:
![C_p=C_v+R](https://tex.z-dn.net/?f=C_p%3DC_v%2BR)
We can determine
from above if we make
the subject of the formula as:
![C_v](https://tex.z-dn.net/?f=C_v)
![=C_p-R](https://tex.z-dn.net/?f=%3DC_p-R)
![C_V = 29.42-(2.7*10^{-3})T+(5.82*10^{-7})T2-(1.305*10^{-8})T3-(8.23*10^{-12})T4-8.314](https://tex.z-dn.net/?f=C_V%20%3D%2029.42-%282.7%2A10%5E%7B-3%7D%29T%2B%285.82%2A10%5E%7B-7%7D%29T2-%281.305%2A10%5E%7B-8%7D%29T3-%288.23%2A10%5E%7B-12%7D%29T4-8.314)
![C_V = 21.106-(2.7*10^{-3})T+(5.82*10^{-7})T2-(1.305*10^{-8})T3-(8.23*10^{-12})T4](https://tex.z-dn.net/?f=C_V%20%3D%2021.106-%282.7%2A10%5E%7B-3%7D%29T%2B%285.82%2A10%5E%7B-7%7D%29T2-%281.305%2A10%5E%7B-8%7D%29T3-%288.23%2A10%5E%7B-12%7D%29T4)
A).
The formula for calculating change in internal energy is given as:
![dU=C_vdT](https://tex.z-dn.net/?f=dU%3DC_vdT)
If we integrate above data into the equation; it implies that:
![U2-U1=\int\limits^{500}_{450}(21.106-(2.7*10^{-3})T+(5.82*10^{-7})T2-(1.305*10^{-8})T3-(8.23*10^{-12})T4\,) du](https://tex.z-dn.net/?f=U2-U1%3D%5Cint%5Climits%5E%7B500%7D_%7B450%7D%2821.106-%282.7%2A10%5E%7B-3%7D%29T%2B%285.82%2A10%5E%7B-7%7D%29T2-%281.305%2A10%5E%7B-8%7D%29T3-%288.23%2A10%5E%7B-12%7D%29T4%5C%2C%29%20du)
![U2-U1=\int\limits^{500}_{450}(21.106-(2.7*10^{-3})T/1+(5.82*10^{-7})T2/2-(1.305*10^{-8})T3/3-(8.23*10^{-12})T4/4\,)](https://tex.z-dn.net/?f=U2-U1%3D%5Cint%5Climits%5E%7B500%7D_%7B450%7D%2821.106-%282.7%2A10%5E%7B-3%7D%29T%2F1%2B%285.82%2A10%5E%7B-7%7D%29T2%2F2-%281.305%2A10%5E%7B-8%7D%29T3%2F3-%288.23%2A10%5E%7B-12%7D%29T4%2F4%5C%2C%29)
![U2-U1= 1059J/mol](https://tex.z-dn.net/?f=U2-U1%3D%201059J%2Fmol)
Hence, the internal energy that must be added to nitrogen in order to increase its temperature from 450 to 500 K = 1059 J/mol.
B).
If we repeat part A for an initial temperature of 273 K and final temperature of 1073 K.
then T = 273 K & T2 = 1073 K
∴
![U2-U1=\int\limits^{500}_{450}(21.106-(2.7*10^{-3})T/1+(5.82*10^{-7})T2/2-(1.305*10^{-8})T3/3-(8.23*10^{-12})T4/4\,)](https://tex.z-dn.net/?f=U2-U1%3D%5Cint%5Climits%5E%7B500%7D_%7B450%7D%2821.106-%282.7%2A10%5E%7B-3%7D%29T%2F1%2B%285.82%2A10%5E%7B-7%7D%29T2%2F2-%281.305%2A10%5E%7B-8%7D%29T3%2F3-%288.23%2A10%5E%7B-12%7D%29T4%2F4%5C%2C%29)
![U2-U1=\int\limits^{500}_{450}(21.106-(2.7*10^{-3})273/1+(5.82*10^{-7})1073/2-(1.305*10^{-8})T3/3-(8.23*10^{-12})T4/4\,)](https://tex.z-dn.net/?f=U2-U1%3D%5Cint%5Climits%5E%7B500%7D_%7B450%7D%2821.106-%282.7%2A10%5E%7B-3%7D%29273%2F1%2B%285.82%2A10%5E%7B-7%7D%291073%2F2-%281.305%2A10%5E%7B-8%7D%29T3%2F3-%288.23%2A10%5E%7B-12%7D%29T4%2F4%5C%2C%29)
![U2-U1= 17,920 J/mol](https://tex.z-dn.net/?f=U2-U1%3D%2017%2C920%20J%2Fmol)