entropy inc with inc temp or dec temp??

[studlyguy87]

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According to S = q/T, entropy should be increasing with decreasing temperature but Kaplan says otherwise. Can anyone explain to me what I am missing here?

Thanks!

 

[Sublimation]

According to S = q/T, entropy should be increasing with decreasing temperature but Kaplan says otherwise. Can anyone explain to me what I am missing here?

Thanks!

Entropy is "randomness". Now temperature is the measure of the average kinetic energy of the particles u are observing. Randomness, in other words the sporadic and random movements of the molecules will increase with increasing temperature. Think of a room, a childs room for this example. its clean and tidy. now you give this little child a shot of caffeine. his average kinetic energy will increase. this increase in KE will allow him to cause more destruction, in other words increase the entropy of the room.

 

[iwannabadentist]

According to S = q/T, entropy should be increasing with decreasing temperature but Kaplan says otherwise. Can anyone explain to me what I am missing here?

Thanks!

wel first off...theres some minor errors with this equation. its not S = q/T, its (delta)S = (delta)q/T. in other words...entropy and temperature don't exactly share an inverse relation ship (one going up, other going down) because we are only talkin about the CHANGE in entropy, not the absolute value of entropy.
also, referring to the above example, entropy is a measure of disorder. so solids are very highly ordered (low entropy), liquids are also pretty organized, but not as organized as a solid since they fit the shape of their container (intermediate entropy), and gases are the most unorganized as the gas molecules are constantly in motion. to go from solid to liquid...you must increase the temperature. so increasing the temperature usually increases the entropy. hope that helps 🙂