Chemistry (OER)
19th Edition
ISBN: 9781947172623
Author: OpenStax
Publisher: OpenStax College
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Chapter 11, Problem 29E
A solution of potassium nitrate, an electrolyte, and a solution of glycerin (C3H5(OH)3), a nonelectrolyte, both boil at 100.3 °C. What other physical properties of the two solutions are identical?
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Q2. Consider the hydrogenation of ethylene
C2H4 + H2 = C2H6
The heats of combustion and molar entropies for the three gases at 298 K are given by:
C2H4
C2H6
H2
AH comb/kJ mol¹
-1395
-1550
-243
Sº / J K¹ mol-1
220.7
230.4
131.1
The average heat capacity change, ACP, for the reaction over the temperature range 298-1000 K is
10.9 J K¹ mol¹. Using these data, determine:
(a) the standard enthalpy change at 800 K
(b) the standard entropy change at 800 K
(c) the equilibrium constant at 800 K.
Chapter 11 Solutions
Chemistry (OER)
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Solutions: Crash Course Chemistry #27; Author: Crash Course;https://www.youtube.com/watch?v=9h2f1Bjr0p4;License: Standard YouTube License, CC-BY