Homework Help: Chemistry

Posted by Anonymous on Tuesday, October 9, 2012 at 11:16pm.

2Fe2O3 -> 4Fe+3O2 changeHrxn= +824.2 KJ

The decomposition of 57.0 g of Fe2O3 results in

The release of 23500 KJ of heat
The absorption of 147 KJ of heat
The absorption of 23500 KJ of heat
The absorption of 294 KJ of heat
The release of 294 KJ of heat
The release of 147 KJ of heat

Chemistry - DrBob222, Tuesday, October 9, 2012 at 11:26pm
This is done just like your last problem except this one is endothermic so energy is being absorbed (because of the + sign on delta H).

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