Solve this: â ‹Q35 At 298 K the standard enthalpies of formation H2O (l) and H2O2(l) are - Chemistry - Chemical Kinetics

Question

Solve this:

â€‹Q35 At 298 K the standard enthalpies of
formation H2O (l) and
H2O2(l) are – 286 0 kJ
mol–1 and –188 0 kJ mol–1
The enthalpy change for reaction
2H2O2(l) →
2H2O(l) + O2(g) will be

(1) – 948 kJ mol–1

(2) – 196 kJ mol–1

(3) + 196 kJ mol–1

(4) + 948 kJ mol–1

Mohan Kumar · Accepted Answer

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Solve this: ​Q35. At 298 K the standard enthalpies of formation H2O (l) and H2O2(l) are – 286.0 kJ mol–1 and –188.0 kJ mol–1. The enthalpy change for reaction 2H2O2(l) → 2H2O(l) + O2(g) will be (1) – 948 kJ mol–1 (2) – 196 kJ mol–1 (3) + 196 kJ mol–1 (4) + 948 kJ mol–1