Enthalpy of Reaction from Enthalpies of Formation

2001 AIPMT 1 question

1. 1 Thermodynamics Easy
   Change in enthalpy for reaction $2H_2O_2(l) \rightarrow 2H_2O(l) + O_2(g)$, if heat of formation of $H_2O_2(l)$ and $H_2O(l)$ are –188 and –286 kJ/mol respectively : -
   A –196 kJ/mol B +196 kJ/mol C +948 kJ/mol D –948 kJ/mol
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