The temperature of an object is directly related to A. the volume of the object. B. the motion of its particles. C. the potentia
2 answers:
Answer: Option (B) is the correct answer.
Explanation:
In a solid object, molecules are closely packed together due to strong intermolecular forces between them. So, when heat is provided to the object then forces between the atoms decreases and as a result, atoms start to move from their initial place.
Hence, atoms gain kinetic energy due to increase in their motion.
For example, when ice is heated it changes into liquid state of water.
Also, K.E =
where k = Boltzmann constant
T = temperature
Hence, kinetic energy is directly proportional to temperature.
Thus, we can conclude that the temperature of an object is directly related to the motion of its particles.
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At first scientists/researchers observe a natural phenomenon. after enough observation, they make predictions why that phenomenon is happening and the reasons that lead to that particular phenomenon. then they generate scientific hypothesis to explain that phenomenon and after getting enough data they develop tests and perform experiments. And check the results they get and at last based on the results they conclude what actually is happening.
Answered by : ❝ AǫᴜᴀWɪᴢ ❞
Answer: (A)
(B)
Explanation:
(A) As we know that HCl is a strong acid and when it is added to an aqueous solution then it leads to increase in the concentration of hydrogen ions. And, when an acid or base is added to a solution then any resistance by the solution in changing the pH of the solution is known as a buffer.
This means that addition of buffer into the given solution will not cause much change in the concentration of in large amount.
As both the buffer components are salt then they will remain dissociated as follows.
Hence, net ionic equation will be as follows.
(B) When we add small amount of sodium hydroxide into the solution then there will occur an increase in concentration of hydroxide ions into the solution. But then due to the presence of buffer there will occur not much change in concentration and the acid will get converted into salt.
The net ionic equation is as follows.