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Given the data: PbO(s), Df Hq = -217.3 kJ mol–1, Sq = +68.7 J mol–1 K–1 PbO2(s), Df Hq...

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Chemistry

Given the data:

PbO(s), Df Hq = -217.3 kJmol–1, Sq = +68.7 J mol–1K–1
PbO2(s), Df Hq = -277.0kJ mol–1, Sq = +68.6 Jmol–1 K–1
O2(g), Df Hq= 0.00 kJmol–1, Sq = +205 J mol–1K–1

calculate the standard free energy change,DrGq, for the reaction:
PbO(s) + ½ O2(g) ® PbO2(s)

Select one:

a. +1.45 kJ mol–1

b. –29.1 kJ mol–1

c. –68.3 kJ mol–1

d. –90.3 kJ m

Answer & Explanation Solved by verified expert
4.5 Ratings (658 Votes)
answer a 145 kJ mol1solutionPbOs    See Answer
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