I would say the answer is emissions. These are the particles that are not supposed to be present in air but due to the production of different substances from humans daily activities these substances go with the air we breath. Hope this helped.
B. Producing hook-and-loop tape is not an example of research in the field of energy.
“A. developing rechargeable batteries” is research involving <em>electrical</em> energy.
“C. Determining the usefulness of oil from soybean plants” is incorrect. Soybean oil might be used as a fuel to provide <em>heat</em> (energy)
“D. studying the effects of insulation” involves retaining the <em>heat</em> (energy) inside a structure.
Answer: C is the correct answer
Explanation:
Answer : The value of the equilibrium constant is,
Explanation :
The given main reaction is:
The intermediate reactions are:
;
;
;
Now we are adding all the equation, we get:
...........(1)
The equilibrium constant expression will be:
Now we are dividing equation 1 by 2, we get:
...........(1)
The equilibrium constant expression will be:
Now put all the given values in this expression, we get:
Thus, the value of the equilibrium constant is,