A sheet of zinc (Zn) that is 4 cm wide by 10 cm long is placed in an hydrochloric acid solution (HCI). The initial thickness of the zinc sheet is 3 cm, and the corrosion current measured on the surface is 9.8x 10-3 amperes (C/s). What is the thickness of the plate (in cm) after 45 weeks? ou may assume that the corrosion occurs on only one side of the sheet.

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One of the disadvantages of using an Ashby plot for material selection is that ......
Select one:
a. it is sensitive to the weighting factors.
it can be used for non-quantitative properties.
it can compare materials only based on two properties.
O b.
О с.
O d. All of the above.
Transcribed Image Text:One of the disadvantages of using an Ashby plot for material selection is that ...... Select one: a. it is sensitive to the weighting factors. it can be used for non-quantitative properties. it can compare materials only based on two properties. O b. О с. O d. All of the above.
A sheet of zinc (Zn) that is 4 cm wide by 10 cm long is placed in an hydrochloric acid solution (HCI). The initial
thickness of the zinc sheet is 3 cm, and the corrosion current measured on the surface is 9.8x10-3 amperes (C/s).
What is the thickness of the plate (in cm) after 45 weeks?
You may assume that the corrosion occurs on only one side of the sheet.
Express your answer as 3 significant figures.
Hint: Convert time to seconds.
Atomic mass of zinc: 65.38 g/mol
ensity of zinc: 7.13 g/cm³
raday's constant: 96,500 C/mol
er:
Transcribed Image Text:A sheet of zinc (Zn) that is 4 cm wide by 10 cm long is placed in an hydrochloric acid solution (HCI). The initial thickness of the zinc sheet is 3 cm, and the corrosion current measured on the surface is 9.8x10-3 amperes (C/s). What is the thickness of the plate (in cm) after 45 weeks? You may assume that the corrosion occurs on only one side of the sheet. Express your answer as 3 significant figures. Hint: Convert time to seconds. Atomic mass of zinc: 65.38 g/mol ensity of zinc: 7.13 g/cm³ raday's constant: 96,500 C/mol er:
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