MCQ
If $\Delta H_f^o$ for ${H_2}{O_2}$ and ${H_2}O$ are $ - 188\,kJ/mole$ and $ - 286\,kJ/mole$. What will be the enthalpy change of the reaction $2{H_2}{O_2}(l) \to 2{H_2}O(l) + {O_2}(g)$
......$kJ/mole$
- ✓$ - 196$
- B$146$
- C$ - 494$
- D$ - 98$
......$kJ/mole$
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(Given atomic masses of $A=64 ; B=40 ; C=32 u$ )