Answer:
1 to 696
The expansion ratio of liquefied and cryogenic from the boiling point to ambient is: nitrogen 1 to 696. liquid helium 1 to 757. argon 1 to 847.
Explanation:
Answer:
a) formula for citric acid is - C6 H8 o7
b) lime water turns opaque after adding co2 due to the formation of calcium carbonate.
c) reaction 3 is displacement reaction where a high reactive metal displace a less reactive from its salt solution.
d) reaction 1) is combination reaction where two reactant combines to give a single product whereas reaction 2) is decomposition reaction where a single reactant splits into more that 1 products.
<u>Answer: </u>The equation which is wrong is ![K_p=K_c(RT)^{-5}](https://tex.z-dn.net/?f=K_p%3DK_c%28RT%29%5E%7B-5%7D)
<u>Explanation:</u>
For the given reaction:
![4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)](https://tex.z-dn.net/?f=4Fe%28s%29%2B3O_2%28g%29%5Crightarrow%202Fe_2O_3%28s%29)
The expression for
is given by:
![K_c=\frac{1}{[O_2]^3}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B1%7D%7B%5BO_2%5D%5E3%7D)
![K_p=\frac{1}{[O_2]^3}](https://tex.z-dn.net/?f=K_p%3D%5Cfrac%7B1%7D%7B%5BO_2%5D%5E3%7D)
The concentration of solids are taken to be 1, only concentration of gases and liquid states are taken. The pressure of only gases are taken.
Relationship between
is given by the expression:
![K_p=K_c\times (RT)^{\Delta n_g}](https://tex.z-dn.net/?f=K_p%3DK_c%5Ctimes%20%28RT%29%5E%7B%5CDelta%20n_g%7D)
where,
= number of moles of gaseous products - number of moles of gaseous reactants
R = gas constant
T= temperature
For the above reaction,
= number of moles of gaseous products - number of moles of gaseous reactants = 0 - 3 = -3
Hence, the expression for
is:
![K_p=K_c\times (RT)^{-3}](https://tex.z-dn.net/?f=K_p%3DK_c%5Ctimes%20%28RT%29%5E%7B-3%7D)
Therefore, the equation which is wrong is ![K_p=K_c(RT)^{-5}](https://tex.z-dn.net/?f=K_p%3DK_c%28RT%29%5E%7B-5%7D)