Hydrogen combines with oxygen in fuel cells according to the thermochemical equation

Suppose that you are working with a firm that is using hydrogen fuel cells to power satellites. The satellite requires 4.0 × 10⁵ kJ of energy during its useful lifetime to stabilize its orbit. Describe how you would determine the mass of hydrogen you would need in your fuel cells for this particular satellite.

Transcribed Image Text:

2 H₂(g) + O₂(g) → 2 H₂O(g) AH° -571.7 kJ =