Steel, an alloy of iron, is extracted from scrap (containing iron and/or steel) in a special furnace which is illustrated in the diagram on the right - Leaving Cert Chemistry - Question B - 2009
Question B
Steel, an alloy of iron, is extracted from scrap (containing iron and/or steel) in a special furnace which is illustrated in the diagram on the right.
(i) Name the ... show full transcript
Worked Solution & Example Answer:Steel, an alloy of iron, is extracted from scrap (containing iron and/or steel) in a special furnace which is illustrated in the diagram on the right - Leaving Cert Chemistry - Question B - 2009
Step 1
Name the process involved.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The process used to extract steel from scrap is known as the electric arc process. This method involves melting the scrap iron or steel using an electric arc produced between electrodes, facilitating high temperatures necessary for steel production.
Step 2
From what material are the electrodes A made?
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The electrodes labeled A are made from carbon or graphite. These materials are chosen for their ability to conduct electricity and withstand high temperatures during the melting process.
Step 3
Name the non-metallic element present in steel at concentrations generally less than 1.7%.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The non-metallic element that is typically found in steel at concentrations below 1.7% is carbon. Carbon is essential in forming steel as it contributes to its hardness and strength.
Step 4
Give any two uses of steel.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Two common uses of steel are:
Construction: Steel is widely utilized in the construction of buildings, bridges, and other infrastructures due to its strength and durability.
Car building: Steel is essential in the automotive industry for manufacturing car bodies and structural components, providing safety and integrity.
Join the Leaving Cert students using SimpleStudy...
