9. How many times does the thickness of the aluminum film increase with an increase in the duration of gas corrosion from 10 to 200 hours at a temperature of 200 C, if the film growth occurs according to a logarithmic law?

If you cannot open the file or have any problems, do not rush to leave a negative review! Contact me and I will quickly help you solve the problem. After purchasing, please leave a positive review of the product :)