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General Chemistry

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Thermodynamics

Question
2 out of 5
 

Consider the figure shown below in which ice is melted to form water. Which of the following is true regarding this conversion?

image\27354 ch 10 Q 2.png



A Entropy is decreased
B Entropy is increased
C Entropy is not affected since the change does not constitute an actual reaction, but only a change in physical state of H2O
D Randomness is decreased
Ans. B The figure shows the conversion of ice (s) to water (l). The process is melting. What happens when a solid is converted to its liquid form? There will be an increase in randomness. This rules out Choice D. Choice C doesn't make any sense. Since the randomness is increased, the entropy is increased.

Thermodynamics Flashcard List

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