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19-09-2021 Rocket Propulsion

Q. What is the range of temperature of reaction product gases in a rocket engine?

A. 500 to 1700 °C
B. 1700 to 2500 °C
C. 2500 to 4100 °C
D. 4100 to 6900 °C


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Dapzoi Verified
Commented on 2021-09-19 16:02:08 (IST)
Answer: C

Explanation: The temperature at which product gases of the chemical reaction taking place within the combustion chamber is too high. It is even higher than the melting point of some of the more commonly used materials in aircraft industry like aluminum (660 °C). Appropriate cooling mechanisms are set up to ensure that this high temperature doesn’t transfer over to the rocket components and that it doesn’t lead to the development of thermal stresses.