GATE MT · 2020 · MT
Question 43: Basic forms of corrosion and its prevention
Give it a try, then reveal the answer to check your work.
Question 43
MTNAT2 marksNeeds review
Iron is corroding in fresh water which has dissolved oxygen concentration of 15 mM. The anodic current density at an overpotential of 120 mV is ______ A·cm
(round off to three decimal places).Given:
Anodic Tafel slope is 0.06 V.
Diffusion coefficient of oxygen is
cm
·s
.Diffusion layer thickness is 0.06 cm.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerEXPLORE & PRACTISE
Paper and topic context
See where this question comes from and choose what to practise next.
2020MT
GATE MT 2020 · Paper 1
Metallurgical Engineering · Original paper archive
- Section
- Metallurgical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
Practise related topics
Explore more previous year questions using this question’s imported topic tags.
metallurgy
GATE MT previous year questions
materials science
GATE MT previous year questions
materials engineering
GATE MT previous year questions
Basic forms of corrosion and its prevention
GATE MT previous year questions
electrochemical kinetics
GATE MT previous year questions
Comments
Ask a question, share your approach, or help someone understand.
Log in to view the discussion
You’re not logged in. Log in or create an account to see discussions and add comments.