Liquid water freezes spontaneously at -5oC and 1 atm. Which of the following sta

Question

Liquid water freezes spontaneously at -5oC and 1 atm. Which of the following statements is most likely TRUE? a). Liquid water freezes at -5oC because the increase in entropy overcomes the endothermicity. b). Liquid water freezes at -5oC because the decrease in entropy overcomes the endothermicity. c). Liquid water freezes at -5oC because the exothermicity overcomes the decrease in entropy. d). Liquid water freezes at -5oC because the exothermicity overcomes the increase in entropy. e). Liquid water freezes at -5oC because the endothermicity overcomes the decrease in entropy.

Explanation / Answer

Ans : c) Liquid water freezes at -5oC because the exothermicity overcomes the decrease in entropy.

The entropy of ice is less than that of water. And water releases heat in order to convert itself into water. So it is an exothermic process.

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