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Evgesh-ka [11]
3 years ago
6

A 1.00 liter solution contains 0.46 M hydrocyanic acid and 0.35 M potassium cyanide If 25.0 mL of water are added to this system

, indicate whether the following statements are true or false. (Note the the volume MUST CHANGE upon the addition of water.)
A. The concentration of HCN will increase.
B. The concentration of CN" will decrease.
C. The equilibrium concentration of Hy0 will remain the same 4
D. The pH will remain the same.
E. The ratio of [HCN]/[CN] will decrease.
Engineering
1 answer:
victus00 [196]3 years ago
4 0
I won leader solution contain 0.46 mL of hydronic I said of 0.3 potassium
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Answer :  

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<h2>Further explanation  </h2>

Given that,  

Length of the cylinder, l = 0.5 m  

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Outer radius of the cylinder, r=0.04\ m  

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Specific gravity is defined as the ratio of the density of the substance to the density of water.  

Kinematic viscosity is the acquired resistance of a fluid when there is no external force is acting except gravity. It is denoted by v.

Absolute viscosity is given by :

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Where, d = density of oil

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\mu=v\times d..............(1)

\mu=5.57\times 10^{-4}\ m^2/s\times 0.92\times 10^3\ kg/m^3

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The separation between the cylinder and pipe is given by :

dy=\dfrac{d_p-d_c}{2}=\dfrac{8.5-8}{2}=0.25\ cm=0.0025\ m

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The mathematical expression for the Newton's law of viscosity can be written as:  

\tau\propto\dfrac{du}{dy}  

\tau=\mu\times \dfrac{du}{dy}..........(2)  

Where  

\tau = Shear stress, \tau=\dfrac{F}{A}............(3)  

\mu = viscosity  

\dfrac{du}{dy} = rate of shear deformation

On rearranging equation (1), (2) and (3) we get :  

\dfrac{F}{A}=v\times \rho\times \dfrac{du}{dy}...............(4)  

A is the area of the cylinder, A=2\pi rl  

Equation (4) becomes :  

F=v\times \rho\times \dfrac{du}{dy}\times 2\pi rl..............(5)

A=\pi d\times l

A=\pi \times 0.08\ m\times 0.5\ m

A=0.125\ m^2

Now, equation (5) becomes :

F=(v\times \rho)\times \dfrac{du}{dy}\times 2\pi rl

F=(0.512\ Pa-s)\times (\dfrac{1}{0.0025\ m})\times \times 0.125\ m^2

F = 25.6 N

<h2>Learn more  </h2>

Kinematic viscosity : brainly.com/question/12947932

<h2>Keyword :  </h2>

Specific gravity, Kinematic viscosity, Area of cylinder, fluid mass density.  

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