A thermometer is in a beaker of water. Which statement best explains why the thermometer reading initially increases when LiBr (s) is dissolved in the water?
(1) The entropy of the LiBr (aq) is greater than the entropy of the water.
(2) The entropy of the LiBr (aq) is less than the entropy of the water.
(3) The dissolving of the LiBr (s) in water is an endothermic process.
(4) The dissolving of the LiBr (s) in water is an exothermic process.
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