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# Gibbs and Work Energy

APCHEM-K8NTLU

Based on the enthalpy and entropy of the following reactants forming compounds from their elements, which of the following reactions would produce the MOST amount of energy available to do work at room temperature?

Gas Compound Formed (25$^\circ$C) $ΔH_f$ (kJ/mol) $ΔS$ (J/mol-K)
$CO_2$ -394 214
$CH_4$ -78 186
$CF_4$ -680 262
$CCl_4$ -107 309
A

$CO_2$

B

$CH_4$

C

$CF_4$

D

$CCl_4$