The answer to your question is,
A. Numbers
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Opinion? Theory? Are there options for the answer? Generally scientists are sure to keep their findings un-biased, so keeping their own personal opinions or feelings out of the research is essential. They WOULD base their knowledge on facts and Scientific Theory which is slightly different then general theory.
At anode,
Cd-----> + 2
At cathode,
+ 2e -----> Ni
Overall reaction,
+ Cd(s) ------> + Ni K=1.17
(aq) (aq) (s)
By nernst equation,
E= - Log K
Where,
F=96500c/mol
M=2
T=298K
E=Zero at equilibrium
R=8.314 J
0= - Log(1.17)
= 0.150v
what is nernst equation?
The Nernst equation is a chemical thermodynamical relationship used in electrochemistry that enables the determination of a reaction's reduction potential (half-cell or full-cell reaction) from the standard electrode potential, absolute temperature, the number of electrons involved in the oxydo-reduction reaction, and activities (often approximated by concentrations) of the chemical species undergoing reduction and oxidation, respectively. It was given the equation's original name in honor of the German physical scientist Walther Nernst.
The link between cell potential, standard potential, and the behaviors of electrically active (electroactive) species is described by the Nernst equation. It links the standard cell potential to the effective concentrations (activities) of the reaction's constituent parts.
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Answer:
Explanation:
Hello!
In this case, since the problem is providing mass, energy, and specific heat of water, we can write the following equation that relates them to each other:
In such a way, we get rid of both m and C, to solve for the change in temperature:
Now we plug in the data to obtain:
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