April 16, 2024, 08:09:07 AM
Forum Rules: Read This Before Posting


Topic: Absolute enthalopy  (Read 2854 times)

0 Members and 1 Guest are viewing this topic.

Offline granite350

  • Regular Member
  • ***
  • Posts: 25
  • Mole Snacks: +2/-3
  • I'm a mole!
Absolute enthalopy
« on: April 12, 2006, 10:18:49 AM »
Absolute Entropy.  Fully explain the difference in absolute entropy values for the following pairs.  Note: Your explanation can not be as simple as “Because it’s a solid,” or “Because it has more disorder.”  You must fully explain why being a solid is important or why it has more disorder and how this causes the absolute entropy value to be greater or lesser than the other substance it’s being compared to.  This topic is discussed on page 769 - 778 [805 - 813] in the textbook. 

a.   C(s, graphite) and C(s, diamond)
b.   HCl(g) and HCl(aq)
c.   CH4(g) and CH3CH2CH2CH3(g)

Do not know what they want is this correct

A) The molecules do not move freely because they are in a solid state so enthopy would decrease

B) The molecules of gas can move around freely but aqueous molecules can move somewhat but not as much as gas molecules.

C) The molecular system of gas moves at first in a few energy states and then later disperses among many more energy states so entropy woul increase.


how does that sound????

Sponsored Links