Answer to Question #197988 in General Chemistry for Riane

Question #197988

Consider the reaction below. How much heat is evolved when 186 g oxygen are reacted with excess hydrogen? 2H2(g)+O2(g)⟶2H2O(g) ΔH=−572 kJ

a. - 106 kJ


b. - 3.32 kJ


c. - 98.4 J


d. - 3400 kJ




1
Expert's answer
2021-05-31T02:05:30-0400

Moles of oxygen in 186 gm


Now the is given for one mole of oxygen,

For 5.812 moles of oxygen,the net heat evolved :


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