heat capacity and entropy

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Mariane Sanchez 1E
Posts: 57
Joined: Fri Sep 29, 2017 7:07 am

heat capacity and entropy

Postby Mariane Sanchez 1E » Tue Jan 30, 2018 9:00 am

just a bit confused as to why the entropy increases if the heat capacity is greater?

Rana YT 2L
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: heat capacity and entropy

Postby Rana YT 2L » Tue Jan 30, 2018 9:42 am

the entropy increases because a higher heat capacity means that more energy will be needed to increase that substances temperature by 1 Celsius. That extra energy needed is transferred to the substances atoms and molecules and increase their energy. This increase in energy can result in an increase in translational, rotational, etc. energy which all result in an increase in the number of positions.

Lisa Tang 1C
Posts: 62
Joined: Fri Sep 29, 2017 7:05 am
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Re: heat capacity and entropy

Postby Lisa Tang 1C » Tue Jan 30, 2018 9:45 am

First, heat capacity is the heat required to raise the temperature of an object by 1 degree Celsius. In general, increasing molecular complexity tends to also lead to higher heat capacities, since larger molecules have more possible ways to vibrate, bend and rotate. The same is true of entropy. More complex molecules have higher entropies due to a greater number of available microstates. So, in this way, if entropy increases, then heat capacity also tends to increase.

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