Change in enthalpy for reaction 2H₂O₂(l) → 2H₂O(l) + O₂(g) If heat of formation of H₂O₂(l) and H₂O(l) are – 188 & – 286 KJ/mol respectively:
A
– 196 KJ/mol
B

196 KJ/mol

C

948 KJ/mol

D
– 948 KJ/mol

Question

Change in enthalpy for reaction 2H₂O₂(l) → 2H₂O(l) + O₂(g) If heat of formation of H₂O₂(l) and H₂O(l) are – 188 & – 286 KJ/mol respectively:

Accepted Answer

– 196 KJ/mol

Answer

+ 196 KJ/mol

Answer

+ 948 KJ/mol

Answer

– 948 KJ/mol

AIPMT PRELIMS 2001 Chemistry Enthalpy MCQ Question