if there is interconversion of solid and liquid states then
Correct answer: C. delta H>Delta E
- A. both a & b
- B. delta H=Delta E
- C. delta H>Delta E
- D. both a and b
Explanation
Explanation: During the interconversion of states (solid to liquid or vice versa), there's usually a transfer of energy as heat (ΔH) involved, which often exceeds the change in internal energy (ΔE).
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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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