In the reaction 2H₂ + O₂ -> 2H₂O, if the heat liberated is 50 J, – McqOptions

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1.	In the reaction 2H₂ + O₂ -> 2H₂O, if the heat liberated is 50 J, what is the heat of formation of H₂O?
A.	-25 J
B.	25 J
C.	-50 J
D.	50 J
Answer» B. 25 J

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