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AP® Physics 1 & 2

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Moderate

Ice Cube Entropy

APPH12-ENSXKX

A $200 \text{ gram}$ cube of ice at $0^\circ \text{ Celsius}$ melts to water at $0^\circ \text{ Celsius}$.

  • $L_{ f }=3.34\times { 10 }^{ 5 }\text{ J/kg }$
  • $C =4186\dfrac { J }{ kg•C° } $.
  • $L_{ v }=2.26\times { 10 }^{ 6 }\text{ J/kg}$

Created for Albert.io. Copyright 2016. All rights reserved.

What is the best value for the change in entropy that occurs as a result of this change of state?

A

The entropy change is $245\text{ J/K}$.

B

The entropy change is $163\text{ J/K}$.

C

The entropy change is $4.09\text{ J/K}$.

D

There is no entropy change because there is no change in temperature in the process.