The space shuttle uses liquid hydrogen and liquid oxygen to produce thrust for liftoff in the following reaction: 2 H₂(l)+ O₂( )$\to$ 2 H₂O(g) If the liquid oxygen supply is set to provide 420 kg/s during a launch,what does the rate of liquid hydrogen supply need to be in kilograms per second?

Question

Quizplus · Accepted Answer

From the equation:

2 H2(l) + O2(g) -> 2 H2O(l)

We can see that the ratio of hydrogen to oxygen needed is 2:1. Therefore, the rate of liquid hydrogen supply needs to be half of the rate of liquid oxygen supply, which is:

420 kg/s ÷ 2 = 210 kg/s

Therefore, the correct answer is D) 52.9 kg/s.

The Space Shuttle Uses Liquid Hydrogen and Liquid Oxygen to Produce