Question

30. At 298 K the standard enthalpies of formation of
H2O(l) and H,02(I) are -286.0 kJ mol-1 and
-188.0 kJ mol-1. The enthalpy change for reaction
2H2O2(1)→ 2H2O(1) + O2(g) will be
(1) - 948 kJ/mol
(2) - 196 kJ mol-1
(3) + 196 kJ mol-1
(4) + 948 kJ mol-1​

Answer 1

$\huge\pink{\mathbb{HELLO}}$

$\huge\pink{\mathcal{*answer*}}$

$\green{\mathcal{→ Option\;(2)}}$

→ $\mathcal{-\:196\:kJ/mol}$✔✔✔

→ $\mathcal{Refer\;the\;above\;attached \;image}$

$\huge\pink{\mathfrak{thank\;you}}$