Change in enthalpy for reaction, 2H2O2(l) $ \to $ 2H2O(l) + O2(g) if heat of formation of H2O2(l) and H2O(l) are $-$188 and - 286 kJ/mol respectively, is

Question

Change in enthalpy for reaction,

2H₂O_2(l) $ \to $ 2H₂O_(l) + O_2(g)

if heat of formation of H₂O_2(l) and H₂O_(l) are $-$188 and - 286 kJ/mol respectively, is

$-$ 196 kJ/mol