Mineral salt compounds (calcium chloride, table salt)
1 answer:
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Answer:
Diffusion time is 7.42 h
Solution:
As per the question:
Temperature, T =
Surface concentration of arsenic,
Surface concentration below Silicon surface,
D =
x =
Initial concentration at t = 0,
Now, by using Flick's second eqn:
Thus by putting appropriate values:
(1)
Now,
Now, from error function values tabulation:
For z = 2.0, erf(z) = 0.998
For z = 2.2, erf(z) = 0.995
Now,
With the help of linear interpolation method:
z = 2.12
Now, using eqn (1) and above value:
= 26700 s
t =
Answer:
0.0334N
Explanation:
Given parameters:
M1 = 5 x 10⁶kg
M2 = 1 x 10⁶kg
Distance = 100m
Unknown:
Gravitational force = ?
Solution:
To solve this problem, we use the Newton's law of universal gravitation.
Fg =
G is the universal gravitation constant
m is the mass
r is the distance
Fg = = 0.0334N