The heat of neutralization of a strong acid and strong alkali is 57.0 kJ mol-1. The heat released when 0.5 mole of HNO3 solution is mixed with 0.2 mole of KOH is:
Correct answer: C. 11.4 kJ
- A. 57.0 kJ
- B. 28.5 kJ
- C. 11.4 kJ
- D. 34.9 kJ
Explanation
KOH is limiting reactant here so 0.2 moles of it react to give 11.4 kJ of energy
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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