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
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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