<u>Answer:</u> The predicted cell potential of the cell is +0.0587 V
<u>Explanation:</u>
The half reactions for the cell is:
<u>Oxidation half reaction (anode):</u> 
<u>Reduction half reaction (cathode):</u> 
In this case, the cathode and anode both are same. So, 
will be equal to zero.
To calculate cell potential of the cell, we use the equation given by Nernst, which is:
![E_{cell}=E^o_{cell}-\frac{0.0592}{n}\log \frac{[M^{2+}_{(diluted)}]}{[M^{2+}_{(concentrated)}]}](https://tex.z-dn.net/?f=E_%7Bcell%7D%3DE%5Eo_%7Bcell%7D-%5Cfrac%7B0.0592%7D%7Bn%7D%5Clog%20%5Cfrac%7B%5BM%5E%7B2%2B%7D_%7B%28diluted%29%7D%5D%7D%7B%5BM%5E%7B2%2B%7D_%7B%28concentrated%29%7D%5D%7D)
where,
n = number of electrons in oxidation-reduction reaction = 2
= ?
![[M^{2+}_{(diluted)}]](https://tex.z-dn.net/?f=%5BM%5E%7B2%2B%7D_%7B%28diluted%29%7D%5D)
= 0.05 M
![[Zn^{2+}_{(concentrated)}]](https://tex.z-dn.net/?f=%5BZn%5E%7B2%2B%7D_%7B%28concentrated%29%7D%5D)
= 4.808 M
Putting values in above equation, we get:
Hence, the predicted cell potential of the cell is +0.0587 V
Explanation:
Other important behaviors of gases explained by the Kinetic Molecular Theory are effusion and diffusion. Effusion is the rate at which a gas escapes through a small hole in a container. Diffusion is the rate at which a gas travels across a room. Both of these phenomena are illustrated by the following figure.
Answer:
The forward reaction is spontaneous above 533 K.
Explanation:
A reaction is spontaneous when the standard Gibbs energy of the reaction (ΔG°) is negative. ΔG° is related to the standard enthalpy of the reaction (ΔH°) and the standard entropy of the reaction (ΔS°) through the following expression.
ΔG° = ΔH° - T.ΔS°
where,
T is the absolute temperature
When ΔG° < 0,
ΔH° - T.ΔS° < 0
ΔH° < T.ΔS°
T > ΔH° / ΔS° = (67.7 × 10³ J) / (126.9 J/K) = 533 K
The forward reaction is spontaneous above 533 K.
To determine the number of nitrogen atoms, we need to know first the chemical formula of TNT. From literature, it has a chemical formula of C7H5N3O6. Then, we relate the atoms of N with the said chemical formula. To convert from moles of N to atoms of N, we use Avogadro's number. It <span>represents the number of
units in one mole of any substance. This has the value of 6.022 x 10^23 units /
mole. We do as follows:
6 moles </span>C7H5N3O6 ( 3 mol N / 1 mol C7H5N3O6 ) ( 6.022x10^23 atoms N / 1 mol N ) = 1.08 x 10^25 atoms N
Therefore, there are 1.08 x 10^25 atoms of nitrogen for 6 moles of TNT.
Answer:
Combination or synthesis
Explanation:
The chemical reaction is given as:
2N₂ + O₂ → 2N₂O
From the reaction above we see that this is a combination reaction. In a combination reaction, two or more species combines to give a product.
- The formation of compounds from the union of their constituent elements falls into this category of reaction.
This combination reaction is also known as a synthesis reaction.
