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Question

Calculate the standard free energy change for the combustion of glucose at 298 K, using the given data.
C6H12O6+6O2(g)6CO2(g)+6H2O
ΔHo=2820 kJ mol1;ΔSo=210 JK1mol1

A
1882.58 kJ mol1
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B
2882.58 kJ mol1
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C
3882.58 kJ mol1
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D
4882.58 kJ mol1
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Solution

The correct option is C 2882.58 kJ mol1
For standard free energy change we have
ΔG=ΔHTΔS
ΔG=2820000298210=2882580Jmol1
ΔG=2882.58KJmol1

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