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In which of the following process does the entropy decrease?

$(a)\;\text{dissolving of $NaCl$ in water} \\(b)\;\text {evaporation of water} \\(c)\;\text{conversion of $CO2_{(g)}$ into dry ice} \\(d)\;\text{none} $

1 Answer

Dry ice is frozen $CO_2$ gas. The freezing temperature at normal sea level air pressure is -78.5 degrees C (-109.3 degrees F).
conversion of $CO2_{(g)}$ into dry ice is correct.
Hence c is the correct anwser.
answered Mar 14, 2014 by meena.p
edited Feb 19 by sharmaaparna1
 

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