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Moderate

Melting and Heating Entropy

APPH12-NW1TQV

A 150. gram ice cube at zero degrees Celsius is melted and warmed to 20 degrees Celsius.

What is the change in entropy as a result of these two changes, the change of state and heating process?

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

The total change in entropy is $44.4\text{ J/K} $.

B

The total change in entropy is $184\text{ J/K} $.

C

The total change in entropy is $221\text{ J/K} $.

D

The total change in entropy is $228\text{ J/K} $.