What is the entropy change of ice to water and water to vapor?

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Homework Help Overview

The discussion revolves around calculating the entropy change associated with phase transitions of water, specifically the melting of ice and the evaporation of water. The subject area includes thermodynamics and the concept of entropy in physical chemistry.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Participants express uncertainty about how to approach the problem, with some asking for the necessary equations to calculate entropy changes. There is a focus on understanding the steps required for both melting and evaporation processes.

Discussion Status

The discussion is ongoing, with participants seeking clarification on the equations needed for the calculations. There is no explicit consensus on the methods to be used, but the inquiry into the necessary equations indicates a productive exploration of the topic.

Contextual Notes

Participants mention specific masses of ice and water, as well as the temperatures relevant to the phase changes, indicating constraints based on the problem setup. There is a lack of clarity regarding the equations and principles that should be applied.

kukulalalu89
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1.) What is the entropy change of a 33.0 g ice cube that melts completely in a bucket of water whose temperature is just above the freezing point of water? (J/deg)




2.) What is the entropy change of a 7.3 g spoonful of water that evaporates completely on a hot plate whose temperature is slightly above the boiling point of water?
 
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Show work.
 
I don't even know how to solve the question!

what equations do I need?
 
kukulalalu89 said:
what equations do I need?
What equations do you think that you need?
 

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