Answer must be explained 1. Consider the freezing of liquid water at -10°C and 1 atm. Forthisprocess, what are the signs for AH, AS, and AG?ΔΗASAG(A)(B)(C)(D)I + + 1+ 1 + 1

Answered: 1. Consider the freezing of liquid…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Answer must be explained

1. Consider the freezing of liquid water at -10°C and 1 atm. For
this
process, what are the signs for AH, AS, and AG?
ΔΗ
AS
AG
(A)
(B)
(C)
(D)
I + + 1
+ 1 + 1

Expert Solution

Step 1

Exothermic transitions are those transitions that release heat for example freezing and condensation show an exothermic reaction. Heat releases during phase transition occurred.

$∆ S_{} = \frac{∆ H}{T}$

For Exothermic Transition (Freezing),

$\begin{array}{rcl} ∆ H_{} & < & 0 (n e g a t i v e) \\ T_{} & < & 0 (n e g a t i v e) \\ ∆ S_{} & = & \frac{∆ H_{} (n e g a t i v e)}{T_{} (n e g a t i v e)} \\ t h e r e f o r e, \\ ∆ S_{} & > & 0 (p o s i t i v e) \end{array}$

Gibbs free energy is zero at constant temperature and pressure.

$t h e v a l u e o f ∆ G = 0$

During freezing water releases some kind of heat which is equal to $∆ H$

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