Answer:
Answer is explained in the explanation section below.
Explanation:
Solution:
Note: This question is incomplete and lacks very important data to solve this question. But I have found the similar question which shows the profiles about which question discusses. Using the data from that question, I have solved the question.
a) We need to find the major species from A to F.
Major Species at A:
1. ![Na_{2} CO_{3}](https://tex.z-dn.net/?f=Na_%7B2%7D%20CO_%7B3%7D)
Major Species at B:
1. ![Na_{2} CO_{3}](https://tex.z-dn.net/?f=Na_%7B2%7D%20CO_%7B3%7D)
2. ![NaHCO_{3}](https://tex.z-dn.net/?f=NaHCO_%7B3%7D)
Major Species at C:
1. ![NaHCO_{3}](https://tex.z-dn.net/?f=NaHCO_%7B3%7D)
Major Species at D:
1. ![NaHCO_{3}](https://tex.z-dn.net/?f=NaHCO_%7B3%7D)
2. ![H_{2}CO_{3}](https://tex.z-dn.net/?f=H_%7B2%7DCO_%7B3%7D)
Major Species at E:
1. ![H_{2}CO_{3}](https://tex.z-dn.net/?f=H_%7B2%7DCO_%7B3%7D)
Major Species at F:
1. ![H_{2}CO_{3}](https://tex.z-dn.net/?f=H_%7B2%7DCO_%7B3%7D)
b) pH calculation:
At Halfway point B:
pH = pK
+ log[![CO_{3}](https://tex.z-dn.net/?f=CO_%7B3%7D)
]/[H![CO_{3}](https://tex.z-dn.net/?f=CO_%7B3%7D)
]
pH = pK
= 6.35
Similarly, at halfway point D.
At point D,
pH = pK
+ log [H![CO_{3}](https://tex.z-dn.net/?f=CO_%7B3%7D)
]/[H2
]
pH = pK
= 10.33
<span>Out of the following given choices;</span>
<span>a. cliff b. fault </span>
<span>c. plateau d. mountain</span>
<span>The answer is
b. A divergent boundary is a line at which two tectonic plates are moving away from each other. It is caused by the two magma convection currents in the mantle moving in opposing directions (one clockwise, the other anti-clockwise) hence dragging the crust with them. Therefore the biggest force at the boundary on the crust is that of pulling. This causes <span>fractures and faults on the earth’s crust.</span></span>
Answer:
positive
positive
Explanation:
Entropy -
In a system, the randomness is measured by the term entropy .
Randomness basically refers as a form of energy that can not be used for any work.
The change in entropy is given by amount heat per change in temperature.
- When solid is converted to gas entropy increases,
As the molecules in solid state are tightly packed and has more force of attraction between the molecules, but as it is converted to gas, the force of attraction between the molecule decreases and hence entropy increases.
So,
The particles of the substance , if are tightly held by strong force of attraction will decrease the entropy ,
And
If the particles are loosely held , the entropy will increase , i.e. , positive entropy .
Similar with solid converting to liquid , the entropy will increases , i.e. , positive entropy .
Hence ,
The correct sign of entropy for both the process is positive .
The concept of atomic masses we can find that the correct answer is:
c) 101
The atomic mass or mass number of an element is the sum of its protons plus the neutrons that are in the atomic nucleus, the electrons are not taken into account because they have a mass much lower than the masses of protons and neutrons.
In the table they indicate that there are 46 protons and 55 neutrons, therefore
M = #_ {protons} + #_ {neutrons}
M = 46 +55
M = 101
In conclusion using the concept of atomic masses we find that the correct answer is:
c) 101
Learn more about atomic mass here:
brainly.com/question/1317964