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Solid gold. 10 carat indicates gold purity is not 100%. For 24 karat gold is pure gold.
Answer is: <span>reaction is nonspontaneous under standard
conditions at all temperatures.</span>
<span>Gibbs free energy
(G) determines if reaction will proceed spontaneously.
ΔG = ΔH - T·ΔS.
ΔG - changes in Gibbs free energy.
ΔH - changes in enthalpy.
ΔS - changes in entropy.
T is temperature in Kelvins.
When ΔS < 0 (negative entropy change) and ΔH > 0
(endothermic reaction), the process is never spontaneous (ΔG> 0).</span>
Atoms consist of three basic particles: protons, electrons, and neutrons.
