System A mixture of xenon (Xe) gas and hydrogen (H₂) gas at 2 atm and 48°C. 300 mL of a solution made from ammonium iodide (NH4I) dissolved in water. A solution made of ammonium iodide (NH₂I) in water, at 58°C. Change An additional 2.0 L of pure H₂ gas is added to the mixture, with the pressure kept constant at 2 atm. 0.5 g of NH I crystallizes out of the solution, without changing the temperature. 50. mL of pure water is added to the solution. ΔS AS < 0 AS = 0 AS > 0 not enough information AS < 0 AS = 0 AS > 0 not enough information AS < 0 AS = 0 AS > 0 not enough information

System A mixture of xenon (Xe) gas and hydrogen (H₂) gas at 2 atm and 48°C. 300 mL of a solution made from ammonium iodide (NH4I) dissolved in water. A solution made of ammonium iodide (NH₂I) in water, at 58°C. Change An additional 2.0 L of pure H₂ gas is added to the mixture, with the pressure kept constant at 2 atm. 0.5 g of NH I crystallizes out of the solution, without changing the temperature. 50. mL of pure water is added to the solution. ΔS AS < 0 AS = 0 AS > 0 not enough information AS < 0 AS = 0 AS > 0 not enough information AS < 0 AS = 0 AS > 0 not enough information

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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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

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 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
A mixture of xenon (Xe) gas and
hydrogen (H₂) gas at 2 atm and
48°C.
300 mL of a solution made from
ammonium iodide (NH4I) dissolved
in water.
A solution made of ammonium iodide
(NH I) in water, at 58°C.
Change
An additional 2.0 L of pure H₂ gas
is added to the mixture, with the
pressure kept constant at 2 atm.
0.5 g of NH I crystallizes out of
the solution, without changing the
temperature.
50. mL of pure water is added to
the solution.
AS
ⒸAS<0
AS = 0
AS > 0
not enough
information
AS < 0
AS = 0
AS > 0
not enough
information
AS < 0
AS = 0
AS > 0
not enough
information
?
00.
18
Ar
BA
Ò

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