g) opening a bottle ofcarbonated beverage (like Coke/Pepsi)increasing h) 2Fe(CO)

Question

g) opening a bottle ofcarbonated beverage (like Coke/Pepsi)increasing h) 2Fe(CO)s Fe2(CO)9(s) + CO(g)1noreasing the lowest entropy. Give brief reasons explaining each of your choices. a) MgO(s) b) O2(8) c HF(g) d) H20(0 3. (4 pts) Circle the compound that has the highest entropy and put a rectangle around the compound that has e) C3Hg(g) NH NO3(s) 4. (4 pts) Calculate the melting point and boiling point for SOg given the following information: So SOs phase Solid Liquid441.0 kJ/mol 113.3 J/mo Gas -453.5 kJ/mol 70.7 J/mol -395.7 kJ/mol 256.8 J/mo

Explanation / Answer

In general, to compare Entropies, following guidelines can be applied:

1) Entropies of gases are more than that of solids. General order Gases>Liquids>Solids.

2)As the number of atoms/molecules increase in the system, entropy will increase as this will result in more possible number of configurations for the molecule.

Coming to your question:

Highest Entropy will be for C3H8 as it is 1) gas 2) Among gases, it has most number of atoms, hence most number of configurations.

Lowest Entropy will be for MgO as it is 1) Solid 2) Among solids, it has least number of atoms, hence least number of configurations.

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