A 100 mL sample of water is placed in a coffee cup calorimeter.When 1.0 g of an ionic solid is added,the temperature decreases from 21.5 °C to 20.8 °C as the solid dissolves.For the dissolving of the solid,_____. A) ΔH 0 C) ΔS(system) 0 E) None of these

Question

A 100 mL sample of water is placed in a coffee cup calorimeter.When 1.0 g of an ionic solid is added,the temperature decreases from 21.5 °C to 20.8 °C as the solid dissolves.For the dissolving of the solid,_____. A) ΔH < 0 B) ΔS(universe)> 0 C) ΔS(system)< 0 D) ΔS(surroundings)> 0 E) None of these

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The Answer of A 100 mL sample of water is placed in a coffee cup calorimeter.When 1.0 g of an ionic solid is added,the temperature decreases from 21.5 °C to 20.8 °C as the solid dissolves.For the dissolving of the solid,_____. A) ΔH < 0 B) ΔS(universe)> 0 C) ΔS(system)< 0 D) ΔS(surroundings)> 0 E) None of these

A 100 ML Sample of Water Is Placed in a Coffee