Tzuyu C.

asked • 03/10/21

For the reaction: 2H2(g) + O2(g) <—> 2H2O(g) H = -296 kJ

a) How much heat is evolved when 150 g of hydrogen is burned in excess oxygen? 


b) How much heat is evolved when 125 g of water is produced? 



c) How much heat is evolved when 5 g of hydrogen reacts with 15 g of oxygen?


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