Answer:
a) D = 4.88 * 10^(-14) m^2 / s
b) <em>t </em>= 1.1 hr
Solution:
a) Magnesium in Aluminum diffusion:
D = Do * exp(-Qd / RT)
= (1.2 * 10^(-4) m^2 / s) * exp ( - 130,000 / 8.31 * 723.15)
= 4.88 * 10^(-14) m^2 / s
D = 4.88 * 10^(-14) m^2 / s
b) The composition remains same at say the distance Xo:
(Cx - Co) / (Cs - Co) = Constant
Xo^2 / D_{550} * <em>t </em>= Xo^2 / D_{450} * 15
D_{550} * <em>t </em>= D_{450} * 15
(1.2 * 10^(-4) m^2 / s) * exp ( - 130,000 / 8.31 * 723.15) * <em>t</em>
(4.88 * 10^(-14) m^2 / s) * 15
by, solving for <em>t </em>we get:
<em>t </em>= 1.1 hr
So, the time required is 1.1 hr.
No you can not. It will not allow you to
<span>The four kinds of information a writer must document are: summary of a discussion, original ideas, common knowledge information, and direct quotation. These are the fundamental information one must seek in order to fully understand the document.</span>
The missing line of code to have the following output is console log ("\'hi").
<h3>What are codes?</h3>
Codes are the rules in an information system that converts the information such as image, text from communication language to other language that is secret and only can understand by the system.
Thus, the missing line of code to have the following output is console log ("\'hi").
Learn more about codes
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