This is an incomplete question, here is a complete question.
The reduction of iron(III) oxide to iron during steel-making can be summarized by this sequence of reactions:
; ![K_1](https://tex.z-dn.net/?f=K_1)
; ![K_2](https://tex.z-dn.net/?f=K_2)
The net reaction is:
; ![K](https://tex.z-dn.net/?f=K)
Write an equation that gives the overall equilibrium constant K in terms of the equilibrium constants K be sure you use their standard symbols.
Answer : The equilibrium expression will be:
![K=(K_1)^3\times (K_2)^2](https://tex.z-dn.net/?f=K%3D%28K_1%29%5E3%5Ctimes%20%28K_2%29%5E2)
Explanation :
The intermediate reaction are:
(1)
; ![K_1](https://tex.z-dn.net/?f=K_1)
(2)
; ![K_2](https://tex.z-dn.net/?f=K_2)
The net reaction is:
; ![K](https://tex.z-dn.net/?f=K)
Now we are multiplying reaction 1 by 3 and reaction 2 by 2 and then adding both the reaction we get the net reaction.
(1)
; ![(K_1)^3](https://tex.z-dn.net/?f=%28K_1%29%5E3)
(2)
; ![(K_2)^2](https://tex.z-dn.net/?f=%28K_2%29%5E2)
If the equation is multiplied by a factor of '2' or '3', the equilibrium constant will be the power of 2 or 3 of the equilibrium constant of initial reaction.
If the equations are added then the equilibrium constant of the reactions will be multiplied.
Thus the equilibrium expression will be:
![K=(K_1)^3\times (K_2)^2](https://tex.z-dn.net/?f=K%3D%28K_1%29%5E3%5Ctimes%20%28K_2%29%5E2)
Answer: Ben Franklin
Explanation: Hope this helps! :)
<span>An atom's identity, that is, whether it is 'oxygen' or 'plutonium', for example, is determined solely by the number of protons in the nucleus. The number of neutrons also plays a part - a differing number of neutrons can change an atom from one isotope of an element into another, but the atoms would still remain the same element, albeit a different isotope. The number of electrons orbiting the atom does not change the identity of the atom, only it's electronic state. Take electrons away and it becomes a positively charged ion of the same element. Add electrons and it becomes a negatively charged ion, but still of the same element.</span>
Answer:
It will take 950 million years for this amount of urea to be hydrolyzed under the same conditions in the absence of urease.
Explanation:
Given that:
- In the presence of urease:
Urease enhances the rate of hydrolysis by = 10^14
Time taken in hydrolysis is 5 min
- In the absence of urease:
Time taken in hydrolysis will be = 5 min x 10^14
Now, converting minutes into years
Time = (5 min x 10^14) / (60 min/hr x 24 hr/day x 365 days/year)
Time = 9.50 x 10^8 years
Time = 950 X 10^6 years
Time = 950 million years