For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O As < 0 A mixture of hydrogen (H,) gas and An additional 2.0 L of pure N, gas O AS = 0 nitrogen (N,) gas at 1 atm and is added to the mixture, with the AS > 0 pressure kept constant at 1 atm. - 12°C. not enough O information AS < 0 O AS = 0 A solution made of potassium iodide 50. mL of pure water is added to (KI) in water, at 86°C. the solution. O AS > 0 not enough information AS < 0 The seawater is passed through a reverse-osmosis filter, which O AS = 0 A liter of seawater at 15°C. separates it into 750. mL of pure O As > 0 water and 250. mL of brine (very salty water). not enough information
For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column. Note for advanced students: you may assume ideal gas and ideal solution behaviour. System Change AS O As < 0 A mixture of hydrogen (H,) gas and An additional 2.0 L of pure N, gas O AS = 0 nitrogen (N,) gas at 1 atm and is added to the mixture, with the AS > 0 pressure kept constant at 1 atm. - 12°C. not enough O information AS < 0 O AS = 0 A solution made of potassium iodide 50. mL of pure water is added to (KI) in water, at 86°C. the solution. O AS > 0 not enough information AS < 0 The seawater is passed through a reverse-osmosis filter, which O AS = 0 A liter of seawater at 15°C. separates it into 750. mL of pure O As > 0 water and 250. mL of brine (very salty water). not enough information
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:For each system listed in the first column of the table below, decide (if possible) whether the change described in the second column will increase the entropy S
of the system, decrease S, or leave S unchanged. If you don't have enough information to decide, check the "not enough information" button in the last column.
Note for advanced students: you may assume ideal gas and ideal solution behaviour.
System
Change
AS
AS < 0
A mixture of hydrogen (H,) gas and
An additional 2.0 L of pure N, gas
AS = 0
nitrogen (N,) gas at 1 atm and
is added to the mixture, with the
AS > 0
- 12°C.
pressure kept constant at 1 atm.
not enough
information
AS < 0
AS = 0
A solution made of potassium iodide
50. mL of pure water is added to
(KI) in water, at 86°C.
the solution.
AS > 0
not enough
information
AS < 0
The seawater is passed through a
reverse-osmosis filter, which
AS = 0
A liter of seawater at 15°C.
separates it into 750. mL of pure
O AS > 0
water and 250. mL of brine (very
not enough
information
salty water).
?
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