Answer: The initial partial pressures of
and
is 139.4 torr.
Explanation:
The equilibrium reaction is
![2NO(g)+Cl_2(g)\rightleftharpoons 2NOCl(g)](https://tex.z-dn.net/?f=2NO%28g%29%2BCl_2%28g%29%5Crightleftharpoons%202NOCl%28g%29)
initially conc. p p 0
At eqm. p-2x p-x 2x
Given: ![p_{NOCl}= 2x= 115torr](https://tex.z-dn.net/?f=p_%7BNOCl%7D%3D%202x%3D%20115torr)
![x=57.5 torr](https://tex.z-dn.net/?f=x%3D57.5%20torr)
The expression for equilibrium constant is :
![K_p=\frac{p_{NOCl}^2}{p_{NO}^2\times p_{Cl_2}}](https://tex.z-dn.net/?f=K_p%3D%5Cfrac%7Bp_%7BNOCl%7D%5E2%7D%7Bp_%7BNO%7D%5E2%5Ctimes%20p_%7BCl_2%7D%7D)
= 2x =115 torr
= (p-2x) = p-115 torr
= (p-x)= p-57.5 torr
Now put all the given values in this expression, we get
![0.27=\frac{(115)^2}{(p-115)^2\times (p-57.5)}](https://tex.z-dn.net/?f=0.27%3D%5Cfrac%7B%28115%29%5E2%7D%7B%28p-115%29%5E2%5Ctimes%20%28p-57.5%29%7D)
![p=139.4torr](https://tex.z-dn.net/?f=p%3D139.4torr)
Therefore, the initial partial pressures of
and
is 139.4 torr.
Metals higher in the reactivity series may displace least reactive metals from their salts. For example sodium is reactive than copper therefore it would displace copper ions from its salt. In this case, Sodium is more reactive than Magnesium and therefore magnesium cannot displace sodium ions from sodium sulfate , therefore, no reaction will take place.
Explanation:
Carbon exists in several isotopes. ... Carbon has the atomic number of 6 which means that all isotopes have the same proton number. However, the number of neutrons is different, thus giving different mass numbers. Carbon-12 has 6 neutrons, carbon-13 has 7 neutrons, and carbon-14 contains 8 neutrons.
About 122 degrees Fahrenheit
Answer:
The answer to the question is 275 years
Explanation:
Here we have
The decay rate is given by
dN/dt = -λN
or dN/N = -λdt
Integrating the above equation with limits N and N₀ we have
㏑(N/N₀) = -λt
Note that the half life
= (㏑ 2)/λ
From where λ = 0.693/5730 = 1.21 × 10⁻⁴
∴ ㏑(14.8/15/3) = -1.21 × 10⁻⁴ × t
or t = 275 years