(7) Cao can be used as dring agent. One such application occurs when water is added to dry conferete of Cement. The reac

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7 Cao Can Be Used As Dring Agent One Such Application Occurs When Water Is Added To Dry Conferete Of Cement The Reac 1 (29.22 KiB) Viewed 35 times

(7) Cao can be used as dring agent. One such application occurs when water is added to dry conferete of Cement. The reaction produces heat, and the product is commonly called slacked lime. The chemical reaction is shown below. [2] CaO + H₂O → Ca(OH)200 a. Analyze the enthalpy and entropy changes and indicate in what condition this reaction is spontaneous. Show your work. b. The values for the formation of the chemicals are listed below. Calculate ASsystem. So AH₂ Substance [J/(K-mol)] (kJ/mol) c. Calculate AHsystem. Since AHsurrounding - AHsysten, calculate ASurrounding AHsurrounding/T (T-25.0 °C) CaO(s) 39.9 -635.1 d. What is AStotal? H₂O(1) 69.9 -285.8 Ca(OH)2 (s) 83.4 -986.1