Consider a rocket engine A and a jet engine B. Which of them will have higher specific impulse?

Consider a rocket engine A and a jet engine B. Which of them will have higher specific impulse? Correct Answer B

B will have much higher specific impulse because it uses large amounts of outside air for combustion. Since specific impulse is impulse per unit amount of propellant and the stored propellant in jet engines is only the fuel (and not both fuel and oxidizer like in rocket engines), it will have a higher specific impulse.

Related Questions

Consider two rocket engines A and B with A having a specific impulse of 242s and B having a specific impulse of 150s. What can be said about their efficiency?
Fill the half-filled code snippet to get the following graph: impulse(1,, ‘red’); ____; impulse(1,, ‘blue’); impulse(1,, ‘yellow’); impulse(1,, ‘green’);