CorrosionQUIZZ
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Hard
nika Laurinavichyute
Used 6+ times
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17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Металл (М) будет корродировать в присутствии деполяризатора (Ox) если
Ep(Mz+/M) > Ep(Oxy+/Ox)
Ep(Mz+/M) < Ep(Oxy+/Ox)
Eo(Mz+/M) > Eo(Oxy+/Ox)
Eo(Mz+/M) < Eo(Oxy+/Ox)
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
В условиях свободной коррозии устанавливается стационарный потенциал если
i1 = i2
i1 + i3 = i2 + i4
ii1 + i4 = i2 +i3
i2 = i3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие Тафелевские зависимости можно ожидать при коррозии железа в кислой среде в отсутствие пассивации?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какую Тафелевскую зависимость можно ожидать при коррозии железа в случае кислородной деполяризации?
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ток коррозии низколегированной стали составляет 100 мкА/см2. Атомный вес Fe 56 г/моль, плотность 7.9 г/см3. Оцените скорость коррозии стали в см/год
0,1
1
0,01
0,008
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Изменение массы образца Fe с поверхностью 1 см2 за неделю коррозии оставляет 10 мг. Плотность железа 7.9 г/см3, атомная масса 56 г/моль. Оцените ток коррозии (мкА/см2)
57
85
1.5*10-9
1,8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Области пассивности на рисунке отвечает
1
2
3
4
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