November 28, 2015

Homework Help: Chemistry II

Posted by Jayd on Sunday, May 20, 2007 at 8:45pm.

The total volume of hydrogen gas needed to fill the Hidenbrug was 2.0e8 L at 1.0 atm and 25 degrees Celsius. How much heat was evolved when the Hidenburg exploded, assuming all the hydrogen reacted?

2.0e8 L H2/22.4 L H2 = 8.9e6 mol H2

For every 2 mol H2 used -572 kJ of energy is produced

-572 kJ/2 mol H2 = -2.86e2 kJ/mol

Now what do I do?

see below.

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