Explain how the scientific definition of work is different from the everyday meaning

Answers

Answer 1

Answer:

In every day life work is a job while in scientific terms the work is a change in energy due to applied force and displacement.

Work(Job) -

In every day life, work means an specific job that is assigned to people.

For example: I work as account assistant in the company.

Work:

In scientific terms the work is a product of applied force and displacement. It is measured in Joule.

For example- the engine did the 10 J of work.

Therefore, in every day life work is a job while in scientific terms the work is a change in energy due to applied force and displacement.

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Answer 2

Answer: EveryDay Work(Job) - A job is like something that someone or something does to get payed for doing thatspecific job they have

Ex: I work at Family Dollars it's my job(That's my everyday working job)

Work(Scientific Term) - Means when force acting on body to break it down in simpler terms, Lets say that you have a marker in your hand and you drop it you've just done work as as said before "Force acting on a body".

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In an atom: The nucleus is made of electrons and protons. Protons have positive charges. Neutrons have negative charges. All of the above.

What is a true statement about the atom's nucleus?

Answers

That it’s the power house and only hold protons and neutrons.

Diffusion is the movement of a substancea. only through the lipid bilayer.
b. only in liquids.
c. only in air.
d. from an area of high concentration to an area of low concentration.

Answers

D. from low to high concentration

Answer:

d. from an area of high concentration to an area of low concentration.

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Why is it important for a scientist studying greenhouse effect to know about mater,forces and energy

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In the 19th century, scientists realized that gases in the atmosphere cause a "greenhouse effect" which affects the planet's temperature. These scientists were interested chiefly in the possibility that a lower level of carbon dioxide gas might explain the ice ages of the distant past. At the turn of the century, Svante Arrhenius calculated that emissions from human industry might someday bring a global warming. Other scientists dismissed his idea as faulty. In 1938, G.S. Callendar argued that the level of carbon dioxide was climbing and raising global temperature, but most scientists found his arguments implausible. It was almost by chance that a few researchers in the 1950s discovered that global warming truly was possible. In the early 1960s, C.D. Keeling measured the level of carbon dioxide in the atmosphere: it was rising fast. Researchers began to take an interest, struggling to understand how the level of carbon dioxide had changed in the past, and how the level was influenced by chemical and biological forces. They found that the gas plays a crucial role in climate change, so that the rising level could gravely affect our future. (This essay covers only developments relating directly to carbon dioxide, with a separate essay for Other Greenhouse Gases. Theories are discussed in the essay on Simple Models of Climate.)

This element has a complete outermost energy level and is found in the 4th period.

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Krypton Krypton has 8 electrons in the outermost energy level. Tip:All elements excluding the Lanthinides and Aninides are in order by molecular structure, kind of. The last column will have a full outermost energy level

Discuss the function of a buffer. How will pH change when small amounts of acids or bases are added to the buffer solution?

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Buffer solution is a blend that has the ability to prevent the pH of the solution from undergoing large variations. It is formed by a weak acid or base, and a salt of that acid or base.
Thus, the following species exist in this buffer solution:

H2CO3: present in great quantity, therefore, being a weak acid, it suffers little ionization;
H +: from the ionization of H2CO3;
HCO3-: also present in high quantity, from ionization of H2CO3 and dissociation of salt (NaHCO3);
Na +: from ionization of NaHCO 3;
If this solution is added a small concentration of acid, its ionization will occur, generating H + cations, which will react with the HCO3- anions present in the medium, giving rise to non-ionized carbonic acid. There is no change in pH.
If a base is added, OH- anions will be generated. These ions combine with the H + cations from the ionization of H2CO3. Thus, the OH- anions are neutralized, maintaining the pH of the medium.

To better understand the annex follows:

Is a bimolecular reaction necessarily second-order? Is a second-order reaction necessarily bimolecular? Answer, with explanations and clarifications.

Answers

A bimolecular reaction is always a second-order reaction, but a second-order reaction is not always a bimolecular reaction.

The most important thing to take note of is that molecularity of a reaction is a concept applicable to only elementary reactions, meaning non-complex. In a way, elementary reactions are basic and achieved in one step. Complex reactions involve intermediate steps before achieving the desired reaction.

Molecularity is equal to the sum of the coefficients of the reactants, so two reactants give a second-order bimolecular reaction. However, second-order reactions can involve more than two reactants especially in complex reactions.

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