May 31, 2016

Homework Help: Chemistry

Posted by Lance on Tuesday, June 7, 2011 at 8:22am.

Hydrogen is burned in oxygen to release heat. How many grams of hydrogen gas must be burned to release enough heat to warm a 50.0 g block of iron, giving 5 mol of water?
2 H2(g) + O2(g) → 2 H2O(g) ΔH = −484 kJ
Iron has a specific heat of 0.449 J/(gC).

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