Aerospace Engineering > GATE 2009 > Motor Performance
The performance of a solid rocket motor is improved by replacing the old propellant with a new one.
The new propellant gives a combustion temperature 40% higher than the previous propellant without
appreciable change in molecular weight of combustion products and other operating parameters. By
approximately what percentage is the specific impulse of the new motor higher than the old one?
The new propellant gives a combustion temperature 40% higher than the previous propellant without
appreciable change in molecular weight of combustion products and other operating parameters. By
approximately what percentage is the specific impulse of the new motor higher than the old one?
Explanation
Correct : a
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