Winter 2013 Midterm Question 5B


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Casey Monahan 2C
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Winter 2013 Midterm Question 5B

Postby Casey Monahan 2C » Sat Feb 11, 2017 8:38 pm

Arrange the following substances in order of increasing standard molar entropy: CHF3 (g), CF4 (g), CH3F (g), CH2F2 (g)

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Re: Winter 2013 Midterm Question 5B

Postby Chem_Mod » Sun Feb 12, 2017 2:13 pm

Standard entropies of large, complicated molecules are greater than those of smaller, simpler molecules. The more flourine atoms it has, the larger number of nucleis and electrons it has. This results in greater number of microstates. The answer is CH3F (g), CH2F2 (g),CHF3 (g), CF4 (g).


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