Question: Hydrogen, H2, is used as a rocket fuel. The hydrogen is burned in oxygen to produce water vapor. 2H2(g) + O2(g) 2H2O(g); H =

Hydrogen, H2, is used as a rocket fuel. The hydrogen is burned in oxygen to produce water vapor.
2H2(g) + O2(g) → 2H2O(g); ∆H = –484 kJ
What is the enthalpy change per gram of hydrogen?

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