Laws Of Motion Question 66

Question: A rocket is propelled by a gas which is initially at a temperature of 4000 K. The temperature of the gas falls to 1000 K as it leaves the exhaust nozzle. The gas which will acquire the largest momentum while leaving the nozzle, is [SCRA 1994]

Options:

A) Hydrogen

B) Helium

C) Nitrogen

D) Argon

Show Answer

Answer:

Correct Answer: D

Solution:

Heavier gas will acquire largest momentum i.e. Argon.



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