Answer:
In the case of Mount Pinatubo, the result was a measurable cooling of the Earth's surface for a period of almost two years. Because they scatter and absorb incoming sunlight, aerosol particles exert a cooling effect on the Earth's surface.
Explanation:
The three particles found in an atom are the protons, neutrons and electrons. Protons have a positive charge. Electrons have negative charge. Lastly, neutrons have no net electrical charge. Protons and neutrons are much heavier than electrons and are located in the center of the atom.
b
the color of lines
Explanation:
on the atomic spectrum for an atom
Following reaction occurs in the given electrochemical system:
![Fe^{2+} + Zn](https://tex.z-dn.net/?f=%20Fe%5E%7B2%2B%7D%20%2B%20Zn%20)
→ Fe +
![Zn^{2+}](https://tex.z-dn.net/?f=%20Zn%5E%7B2%2B%7D%20)
Thus, under standard conditions
E(0) = E(0) Fe2+/Fe - E(0) Zn2+/Zn
where,
![E^{0}Fe2+/Fe](https://tex.z-dn.net/?f=%20E%5E%7B0%7DFe2%2B%2FFe)
= standard reduction potential of Fe2+/Fe = -0.44 v
![E^{0}Zn2+/Zn](https://tex.z-dn.net/?f=%20E%5E%7B0%7DZn2%2B%2FZn)
= standard reduction potential of Zn2+/Zn = -0.763 v
E(0) = 0.323 v
now, we know that, ΔG(0) =-nFE(0) ............... (1)
Also, Δ
![G^{0} = -RTln(K) ............ (2)](https://tex.z-dn.net/?f=%20G%5E%7B0%7D%20%3D%20-RTln%28K%29%20............%20%282%29)
On equating and rearranging equation 1 and 2, we get
K = exp(
![\frac{nFE(0)}{RT}](https://tex.z-dn.net/?f=%20%5Cfrac%7BnFE%280%29%7D%7BRT%7D%20)
)= exp (
![\frac{2X96500X0.323}{8.314X298}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2X96500X0.323%7D%7B8.314X298%7D%20)
) = 8.46 x