Corrosion occurs when a metal is exposed to air and the air has some sulpher so when it mixes in with the silver it will form a layer of silver sulphide
Hi. Great Video. I am putting together Chemistry videos for E-Learning Jamaica Project. Would appreciate it if you provide me with an email address where I can send you a letter requesting permission to use your videos in the tutorials. Thank you
how do fish breathe? there is oxygen inside water. however being completely submerged slows the process greatly. hence why the splash zones on ships are the first to corrode or have a failure in coatings instead on the bottom hull that is constantly submerged
@@saitarun6562 corrosion itself is a electrochemical process and there is 4 parts to a corrosion cell a anode, cathode, return path (the material in question i.e steel, aluminum, iron and so on) and a electrolyte. To quote a text book for coatings inspection and corrosion control on the 5 variables to control corrosion rates "1. Oxygen: Oxygen content additionally influences the rate of corrosion. Limiting oxygen is a practical way of reducing the rate of corrosion. The addition of inert gases, like nitrogen, into a tank, or ves- sel, to reduce the oxygen level, will reduce the rate of corrosion in that tank or vessel. Additionally, the limiting of oxygen by de-aeration might be utilized with steam boilers to reduce the rate of corrosion attack. Yet, oxygen concentration cells also exist that speed the rate of corrosion. This occurs when there is a difference in oxygen levels between two different points on the same metal. This is often seen in immersed conditions, where the electrolyte at one point on the metal has a higher concentration of oxygen, than the electrolyte at another point on the metal. The area of higher oxygen con- centration is then the cathode, while the area with the lesser oxygen concentra- tion becomes the anode. The anodic area will have accelerated corrosion. This oxygen concentration cell is often found in immersed conditions, caused by a crevice, over-lapping joints, or with debris and dirt accumulation"
@@saitarun6562 I just rewatched the video and the oil on the water was a oxygen barrier to prevent the water to aerate, also the impurities in the water of test tube b was boiled out. The pure water with no oxygen exchange make a poor scenario for corrosion to occur. All things will rust in time just some envirements will take drastically longer to do so
so basically you are saying: you need air and water for it to rust, and if you remove air AND water then it will not rust. makes no flipping sense bra.
Corrosion occurs when a metal is exposed to air and the air has some sulpher so when it mixes in with the silver it will form a layer of silver sulphide
really good! I don find anything wrong w the voice. it's clear, n easy to understand ((: thanks for all e videos!
the water in test tube b was supposed to be boiled in order to remove the oxygen from the water
yes but oil can also prevent oxygen
@1:15, it said it's boiled distilled water
Clear voice full understood .
My ratings would be 10 out of 10😊😊😊😊✌👌👌👍👍👍
Civil4ever
2 years ago
thanks! , that was a good recall
This video was really good, it helped a lot. Thanks :)
you are a poo
@@chiragjampala1929 ur mum is fam
@@hibzzyj3093 bro ur worthless
So if the oil was not present would then the nails rust in test tube B? If so would this be a slower reaction that test tube A?
Why mars is rusty
While no water are there?
Thx this helps me wit my 5th lesson I’m learning
Thank a lot helped me for presentation
Very educational. 👍👍
Can you do 21 22 23 24 25 26 27 28 and 29 multiplication Tables?
not the Mario Forever World 1 soundtrack i was searching but ok
How can we keep iron from air
Great video
Great vid
The experiment seems to be lacking a control. Other than that, good video.
Ess video ka full object kya hai 🙁🙁
The lesson here is that Iron objects should only be kept in a vacuum
Awe I like ur voice😌
isnt this rusting
💯
I have lern to learn more
Who’s here from textbook QR CODE?🤣
Hi. Great Video. I am putting together Chemistry videos for E-Learning Jamaica Project. Would appreciate it if you provide me with an email address where I can send you a letter requesting permission to use your videos in the tutorials. Thank you
Ship wrecks rust under water. (without air)
how do fish breathe? there is oxygen inside water. however being completely submerged slows the process greatly. hence why the splash zones on ships are the first to corrode or have a failure in coatings instead on the bottom hull that is constantly submerged
Thank you Brandon Pratt
@@brandonpratt5130 in case b there is a oxygen under the water right but corrosion doest occur why?
@@saitarun6562 corrosion itself is a electrochemical process and there is 4 parts to a corrosion cell a anode, cathode, return path (the material in question i.e steel, aluminum, iron and so on) and a electrolyte.
To quote a text book for coatings inspection and corrosion control on the 5 variables to control corrosion rates
"1. Oxygen: Oxygen content additionally
influences the rate of corrosion. Limiting
oxygen is a practical way of reducing the
rate of corrosion. The addition of inert
gases, like nitrogen, into a tank, or ves-
sel, to reduce the oxygen level, will
reduce the rate of corrosion in that tank
or vessel. Additionally, the limiting of
oxygen by de-aeration might be utilized
with steam boilers to reduce the rate of
corrosion attack.
Yet, oxygen concentration cells also
exist that speed the rate of corrosion.
This occurs when there is a difference in
oxygen levels between two different
points on the same metal. This is often
seen in immersed conditions, where the
electrolyte at one point on the metal has
a higher concentration of oxygen, than
the electrolyte at another point on the
metal. The area of higher oxygen con-
centration is then the cathode, while the
area with the lesser oxygen concentra-
tion becomes the anode. The anodic area
will have accelerated corrosion. This
oxygen concentration cell is often
found in immersed conditions, caused by
a crevice, over-lapping joints, or with
debris and dirt accumulation"
@@saitarun6562 I just rewatched the video and the oil on the water was a oxygen barrier to prevent the water to aerate, also the impurities in the water of test tube b was boiled out. The pure water with no oxygen exchange make a poor scenario for corrosion to occur. All things will rust in time just some envirements will take drastically longer to do so
my final test .. T.A
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uhh..my teacher told me to look at this but i am too board and angry so i wont :)
*b o a r d*
Lol
Iron rust
he is veryyyy slowww
No!.... For54Ever
so true
11 years ago is wild 😅😂❤
Я гуль
ps at 1:57 "Nails in test tube B donot rust" ... really? donot? Do not or Don't. wow..
WABAM
sus
And it will turn black
the vediois yoo laggy
his voice is quite boring and it makes the video lack entertainment.
Complete waste of time because he is asleep the entire video
The voice on this is..well..terrible. Half robotic even
rubbish
nub
so basically you are saying: you need air and water for it to rust, and if you remove air AND water then it will not rust. makes no flipping sense bra.
What it makes perfect sense.
so if you just remove one, air OR water, then it will still rust?