Water and Ice

Chemistry Level pending

The picture above illustrates the process of water frozen into a solid state, ice. Which of the following statements is correct? (\(\Delta H\), \(\Delta S\) and \(\Delta G\) mean the change in enthalpy, entropy and Gibbs free energy, respectively.)

a) Both the enthalpy and entropy of the system decrease.
b) If the temperature is lower than \(0^\circ\text{C}\), then (\(\Delta G < 0\)).
c) If the temperature is higher than \(0^\circ\text{C}\), then \(\lvert{\Delta H}\rvert > \lvert{T\Delta S}\rvert\).


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