- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.A burning
B intensive oxidation
C evaporation
D none of these
ANS:B - intensive oxidation Intensive oxidation refers to a rapid and vigorous chemical reaction between a substance and oxygen, resulting in the formation of oxides. In the context of metal cutting with an oxy-acetylene flame, intensive oxidation occurs when the high-temperature flame comes into contact with the metal surface. During the cutting process, the oxy-acetylene flame generates extremely high temperatures, typically exceeding 3,000 degrees Celsius (5,400 degrees Fahrenheit). At such elevated temperatures, the metal undergoes rapid oxidation when exposed to the oxygen-rich flame. This oxidation reaction involves the transfer of oxygen atoms from the surrounding atmosphere to the metal surface, where they combine with the metal atoms to form metal oxides. The rapid and intense nature of this oxidation reaction is what facilitates the efficient cutting of metals. As the metal oxidizes, it weakens and eventually melts, allowing the high-pressure oxygen stream to blow away the molten metal oxides. This continuous process of oxidation and removal of the molten material creates a clean and precise cut along the desired path. In summary, intensive oxidation in metal cutting with an oxy-acetylene flame refers to the rapid and thorough oxidation of the metal surface by the high-temperature flame, leading to the formation of metal oxides and enabling the cutting process to occur effectively. |


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