Answer:
The answer to the question is;
The concentration of AB, which is written as [AB] after 11.9 s is 0.328 M.
Explanation:
The form of the equation for the second order integrated rate law is
y = mx +b
Where:
y = 1/A
m = k
x = t and
b = 1/A₀
Therefore for the reaction
AB(g) → A(g) + B(g)
rate = k[AB]² and k = 0.20 L/mol·s we have
![\frac{1}{[AB]} = \frac{1}{[AB]_0} + kt](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5BAB%5D%7D%20%3D%20%5Cfrac%7B1%7D%7B%5BAB%5D_0%7D%20%2B%20kt)
Since the initial concentration of AB is [AB]₀ = 1.50 M,
t = 11.9 s
k = 0.20 L/mol·s
we have
![\frac{1}{[AB]} = \frac{1}{1.50 M/L} + 0.20 L/(mol)(s)*11.9 s](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5BAB%5D%7D%20%3D%20%5Cfrac%7B1%7D%7B1.50%20M%2FL%7D%20%2B%200.20%20L%2F%28mol%29%28s%29%2A11.9%20s)
![\frac{1}{[AB]}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B%5BAB%5D%7D)
= 3.047 L/mol
[AB] = 0.328 M
The concentration of AB after 11.9 s is 0.328 M.
An example of an intensive property of matter is the density of water is 1000 kg/m3. The correct option is C.
<h3>What are intensive properties?</h3>
Intensive properties are those properties that do not depend upon the amount of substance. These properties are density, color, chemical potential, reactivity, etc.
There are two types of properties on the basis of physical quality. They are intensive and expensive. Intensive properties do not depend upon the size and abstraction of the substance.
Thus, the correct option is C. The density of water is 1000 kg/m3.
To learn more about intensive properties, refer to the link:
brainly.com/question/13733851
#SPJ1
Explanation:
(a) The given data is as follows.
Temperature (T) = 
= (25 + 273) K = 298 K
= 43000 J/mol
Since, both the liquid and vapors are at equilibrium. Therefore, change in free energy will be calculated as follows.
= 0
43000 - 
= 0
= -144 J/mol K
Negative sign indicates an increase in entropy of the system.
Now, for 1 mole of 
is as follows.
= 144 J/K
So, 
- 214 = 144 J/k
= 358 J/K
Therefore, we can conclude that entropy of vapor is 358 J/K.
(b) As we know that intensive variable are the variables which do not depend on the amount of a substance.
So, in the given situation only temperature will act as an intensive variable that will be required to completely specify the vapor-liquid mixture of .
Answer:
c ammonium hydroxide nh4oh has higher ph value and its a base
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The earths crust and the skin of rock on the outer layer of earth.
