Fill in the blanks:
$(i)$ The change in heat energy during a chemical reaction at constant volume is called .......
$(ii)$ During a ....... process,there is no absorption or evolution of heat.
$(iii)$ The equation $\Delta G = \Delta H - T \Delta S$ was proposed by .......

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(N/A) $(i)$ Internal energy change (or $\Delta U$)
$(ii)$ Adiabatic
$(iii)$ Gibbs-Helmholtz

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