What temperature is used for cracking as stated in the material?

What temperature is used for cracking as stated in the material?

• A. 650ºC
• B. 350ºC
• C. 500ºC
• D. 750ºC

Answer: (A)

Cracking needs enough heat to break the strong bonds in large hydrocarbon molecules so they split into smaller, more valuable pieces. The material states the cracking temperature as 650°C, which is clearly high enough to drive these bond-cleavage events in a thermal cracking setup. This temperature reflects a practical balance: fast enough reaction rate to be useful, but not so extreme that it causes excessive over-cracking or coke formation. A much lower temperature like 350°C would be too slow to be practical, while catalytic cracking around 500°C relies on a catalyst to lower the energy barrier, and 750°C could push the process toward undesirable products. So 650°C is the specified temperature for cracking in the material.

Cracking needs enough heat to break the strong bonds in large hydrocarbon molecules so they split into smaller, more valuable pieces. The material states the cracking temperature as 650°C, which is clearly high enough to drive these bond-cleavage events in a thermal cracking setup. This temperature reflects a practical balance: fast enough reaction rate to be useful, but not so extreme that it causes excessive over-cracking or coke formation. A much lower temperature like 350°C would be too slow to be practical, while catalytic cracking around 500°C relies on a catalyst to lower the energy barrier, and 750°C could push the process toward undesirable products. So 650°C is the specified temperature for cracking in the material.