Problem: For each of these processes, is the entropy change positiveor negative?i.) The melting of ice cubes at -5 Celsiusii.) The dissolving of sugar in hot coffeeiii.) The reaction of nitrogen atoms to for N2 moleculesiv.) Alignment of iron filings in a magnetic fieldv.) Formation of CH4 andO2 molecules from CO2 and H2O at room temperature

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Recall that entropy is the degree of chaos or disorder of a system.

Identify entropy change:

i.) The melting of ice cubes at -5 Celsius

  • melting means solid to liquid


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Problem Details

For each of these processes, is the entropy change positiveor negative?

i.) The melting of ice cubes at -5 Celsius

ii.) The dissolving of sugar in hot coffee

iii.) The reaction of nitrogen atoms to for N2 molecules

iv.) Alignment of iron filings in a magnetic field

v.) Formation of CH4 andO2 molecules from CO2 and H2O at room temperature

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