Answer is. gas <span>has the highest entropy.
</span>Entropy is the measure of the molecular disorder<span> and it is system’s thermal </span>energy<span> per unit </span>temperature<span> that is unavailable for doing useful </span>work<span>.
Nitrogen molecules have weakest intermolecular bonds in gas phase and move fast and without order. In solid state movement is much more less.
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Heterogeneous-a mixture of two or more things
solution-a substance that dissolves
suspension-mixture where solid particles do not dissolve
colloid-does not settle and cannot be seperated
Heterogeneous
- tuna casserole
-chocolate chip cookies
-gelatin dessert
-green salad
Solution
-oil (?) depends
Suspension
-vinegar salad dressing
-oil (?) it could go in either catagory
Colloid
-vinegar salad dressing
-oil (?)
1.00
Explanation:
the density of water is always 1
Answer:
0.02 tons of NO produced when 4 tons of coal is burned
Explanation:
From the given,
Chemical formula of coal = ![C_{134}H_{96}O_{9}NS](https://tex.z-dn.net/?f=C_%7B134%7DH_%7B96%7DO_%7B9%7DNS)
Molecular mass of coal = ![(134\times12)+(9\times1)+(9\times16)+14+32\,=1906.1gm](https://tex.z-dn.net/?f=%28134%5Ctimes12%29%2B%289%5Ctimes1%29%2B%289%5Ctimes16%29%2B14%2B32%5C%2C%3D1906.1gm)
Let’s calculate the mass of nitrogen in coal
![Percentage\,weight\,of\,nitrogen=\frac{Mass\,of\,nitrogen}{Molecular\,mass\,of coal}](https://tex.z-dn.net/?f=Percentage%5C%2Cweight%5C%2Cof%5C%2Cnitrogen%3D%5Cfrac%7BMass%5C%2Cof%5C%2Cnitrogen%7D%7BMolecular%5C%2Cmass%5C%2Cof%20coal%7D)
![Percentage\,weight/,of/,nitrogen=\frac{14}{1906.1}=0.73%](https://tex.z-dn.net/?f=Percentage%5C%2Cweight%2F%2Cof%2F%2Cnitrogen%3D%5Cfrac%7B14%7D%7B1906.1%7D%3D0.73%25)
Amount of coal burnt = 4tons
Amount of NO produced by burning 4tons = ![4\,tons\,of\,coal\times \frac{0.73tons}{100\,tons\,of\,coal}=0.0292\,tons](https://tex.z-dn.net/?f=4%5C%2Ctons%5C%2Cof%5C%2Ccoal%5Ctimes%20%5Cfrac%7B0.73tons%7D%7B100%5C%2Ctons%5C%2Cof%5C%2Ccoal%7D%3D0.0292%5C%2Ctons)
This nitrogen is converted into NO by reacting with atmospheric oxygen.
The <span>covalent bonds are predicted for each atom are :
</span>(a)F = 1
(b) Si = 4
(c) Br = 1
(d) O = 2
(e) P = 3
(f) S = 2