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Entropy questions.

To start off with, I know very little about this topic at all. I'd be grateful if some of you can answer these -

Is entropy and the size of a molecule related?

Does entropy of a gas increase with temperature rise in a closed environment?

Does entropy of a gas increase with temperature rise in an open environment?

Does entropy of a liquid increase with temperature rise... at all?

In a chemical reaction, why do molecules disfavour low[er] values of entropy?

How do you measure entropy?

How do you destroy entropy?

Thanks very much =D
Original post by Another
To start off with, I know very little about this topic at all. I'd be grateful if some of you can answer these -

Is entropy and the size of a molecule related?

yes


Does entropy of a gas increase with temperature rise in a closed environment?

yes

Does entropy of a gas increase with temperature rise in an open environment?

yes

Does entropy of a liquid increase with temperature rise... at all?

yes

In a chemical reaction, why do molecules disfavour low[er] values of entropy?

they don't ...

How do you measure entropy?


There are several methods employed, usually involving equilibria at which the Gibbs free energy change is zero and ΔH = TΔS

It is measured in Joules per Kelvin

How do you destroy entropy?

Thanks very much =D


You cannot, it is a measure of the random nature of matter ...

i.e. disorder.
Reply 2
Avatar for The.Doctor
The.Doctor
2
Sounds like you need Chapter 2 of 'Why Chemical Reactions Happen' by Keeler & Wothers!

www.amazon.co.uk/Chemical-Reactions-Happen-James-Keeler/dp/0199249733/ref=sr_1_2?ie=UTF8&qid=1357400840&sr=8-2

If you read just one book in 2013, it should be this.
Reply 3
Avatar for Another
Another
OP
21
Thanks for the help!

And Doctor, you are a deity, I swear.

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