Chemistry
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ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:5.40 The NBS tables contain the following data at 298 K:
A¢H°/kJ mol¬1
AfG°/kJ mol¯
1
-771.36
-661.8
CUSO4(s)
CUSO4 · H2O(s)
CuSO4 · 3H2O(s)
H2O(g)
-1085.83
-918.11
-1684.31
-1399.96
-241.818
-228.572
(a) What is the equilibrium partial pressure of H20 over a
mixture of CuS04(s) and CUSO4 · H2O(s) at 25 °C? (b) What
is the equilibrium partial pressure of H20 over a mixture of
CuSO4 · H20(s) and CUSO4 · 3H2O(s) at 25 °C? (c) What are
the answers to (a) and (b) if the temperature is 100 °C and AC:
is assumed to be zero?
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