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Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner?
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Give reason iron does not burn on heating but iron filings burn vigoro...
Iron does not burn because it has high boiling point because it it's higher inter ionic force therefore it takes longer to acquire high temperature and start to burn whereas iron fillings are small it catches ignition very fast and gives red fumes
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Give reason iron does not burn on heating but iron filings burn vigoro...
Reasons for Iron not burning on heating but Iron filings burn vigorously when sprinkled in the flame of the burner
Iron does not burn on heating
Iron is a highly stable element and does not burn on heating due to various reasons:
- Iron has a high melting point of 1538°C and boiling point of 2861°C. Thus, it requires a lot of energy to break its strong metallic bonds and cause it to melt or vaporize.
- Iron is also highly reactive with oxygen in the air, resulting in the formation of a protective layer of iron oxide on its surface. This layer prevents further reaction with oxygen and protects the iron from burning.
- Iron is a poor conductor of heat and does not transfer heat quickly enough to reach its ignition temperature.
Iron filings burn vigorously when sprinkled in the flame of the burner
Iron filings, on the other hand, burn vigorously when sprinkled in the flame of the burner due to the following reasons:
- Iron filings have a larger surface area compared to a solid piece of iron. This increases the rate of reaction with oxygen and results in a more rapid combustion process.
- The heat from the burner provides the activation energy needed to initiate the combustion process, breaking the iron oxide layer and exposing the reactive iron underneath.
- Once the combustion process starts, it is self-sustaining and continues until all the iron filings have reacted with oxygen and burned.
Conclusion
In conclusion, iron does not burn on heating due to its high stability and protective layer of iron oxide. However, iron filings burn vigorously when exposed to a flame due to their larger surface area and the provision of activation energy by the heat source.
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Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner?.
Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Give reason iron does not burn on heating but iron filings burn vigorously when sprinkled in the flame of the burner?.
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