Equations

Question 1

Noyes whitney equation

Answer 1

dm/dt = A D/d (Cs-Cb)

dm/dt = solute dissolution rate
m = mass of dissolved material
t = time
A = surface area of solute particle
D = diffusion coefficient
d = thickness of concentration gradient
Cs = particle surface (saturation) concentration
Cb= concentration in bulk/solvent/solution

Question 2

Half life of second order reaction

Answer 2

1 / [A] = K+ + 1 / [A]

Question 3

At half life what is it’s initial concentration?

Answer 3

[A] = [A] / 2

Question 4

Hybridisation

Answer 4

Groups Hybridisation
1 S
2 Sp
3 Sp2
4 Sp3

Question 5

What is stokes law

Answer 5

v = 2r2(squared) x g (o-p)
9N

V = velocity
r = radius
o = density
p = density of liquid
n = dynamic viscosity
g = gravity