Mechanical Engineering - Workshop Technology - Discussion
Discussion Forum : Workshop Technology - Section 1 (Q.No. 18)
18.
The temperature of oxy-hydrogen flame is __________ oxy-acetylene flame.
Answer: Option
Explanation:
An oxy-hydrogen flame is created by burning a mixture of hydrogen and oxygen gases. The temperature of this flame is around 2800 °C (5072 °F) which is still high, but lower than the temperature of an oxy-acetylene flame.
On the other hand, an oxy-acetylene flame is created by burning a mixture of acetylene and oxygen gases. The temperature of this flame is around 3100 °C (5600 °F). Acetylene is a hydrocarbon gas with a triple bond between its carbon atoms, which makes it more reactive and burns hotter than hydrogen.
In summary, the temperature of an oxy-acetylene flame is higher than that of an oxy-hydrogen flame because acetylene is a more reactive gas that burns at a higher temperature than hydrogen.
Discussion:
6 comments Page 1 of 1.
Nvk said:
1 year ago
The correct answer is more than.
The temperature of an oxy-hydrogen flame is approximately 2000-2400°C (3632-4352°F), which is higher than that of an oxy-acetylene flame.
Oxy-acetylene flames typically reach temperatures around 1500-2000°C (2732-3632°F), depending on the mixture ratio and other factors.
The higher temperature of oxy-hydrogen flames is due to the more complete combustion of hydrogen, which releases more energy per unit volume than acetylene. This makes oxy-hydrogen flames suitable for applications requiring high heat, such as:
- Cutting and welding thick materials.
- Melting and forming refractory metals.
- High-temperature brazing and soldering.
However, oxy-hydrogen flames are also more expensive and require more complex equipment, which limits their use to specialized applications.
The temperature of an oxy-hydrogen flame is approximately 2000-2400°C (3632-4352°F), which is higher than that of an oxy-acetylene flame.
Oxy-acetylene flames typically reach temperatures around 1500-2000°C (2732-3632°F), depending on the mixture ratio and other factors.
The higher temperature of oxy-hydrogen flames is due to the more complete combustion of hydrogen, which releases more energy per unit volume than acetylene. This makes oxy-hydrogen flames suitable for applications requiring high heat, such as:
- Cutting and welding thick materials.
- Melting and forming refractory metals.
- High-temperature brazing and soldering.
However, oxy-hydrogen flames are also more expensive and require more complex equipment, which limits their use to specialized applications.
Naidu said:
1 decade ago
For the oxy-acetylene temperature value near to 3250 degrees centigrade.
For oxy-hydrogen temperature value near to 2400 - 2700 degrees centigrade.
For oxy-hydrogen temperature value near to 2400 - 2700 degrees centigrade.
Debashis said:
9 years ago
Oxy-acetylene actual temperature is near about 3200°C to 3500°C.
Oxy-hydrogen temperature is near 2000°C to 2200°C.
Oxy-hydrogen temperature is near 2000°C to 2200°C.
Amal said:
6 years ago
oxy-acetylene -----> 3200 c.
oxy-hydrogen ------> 2400 c [for low melting metals].
oxy-hydrogen ------> 2400 c [for low melting metals].
Sujeet said:
8 years ago
Because of water formation temp is lower than oxyactlene.
Venky said:
7 years ago
Thanks all.
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