Answer : The value of diffusion coefficient is,
Explanation :
Formula used :
where,
D = diffusion coefficient = ?
=
=
R = gas constant = 8.314 J/mol.K
T = temperature =
Now put all the given values in the above formula, we get:
Thus, the value of diffusion coefficient is,
0.33g
Explanation:
Given parameters:
Diameter of cylinder = 0.234cm
length = 2.697cm
unknown:
mass of the cylinder = ?
Solution:
To solve this problem, we know that density of the aluminium can be determined and it is a constant.
Density is the mass per unit volume of a substance
Density =
Mass of the cylinder = density x volume
To calculate the volume of cylinder;
Volume = π r² h
radius of the cylinder = = 0.12cm
Volume = 3.142 x 0.12² x 2.697 = 0.12cm³
Density of aluminium = 2.7g/cm³
Mass of the cylinder = 0.12 x 2.7 = 0.33g
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Density brainly.com/question/2690299
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