Matching -Spontaneous processes are characterized by a change in Gibbs free energy that is ______. A) phylogenetic B) negative C) H₂O D) ΔH° E) H – TS F) halobacteria G) open H) entropy I) flux J) polymers K) ΔG°´ L) thermophiles M) nitrogen N) positive

Question

Quizplus · Accepted Answer

Spontaneous processes have a decrease in Gibbs free energy which is a negative value.

Answer: E
 Gibbs free energy (ΔG) is related to enthalpy (ΔH) and entropy (ΔS) by the equation ΔG = ΔH – TΔS. Therefore, a decrease in Gibbs free energy can also be expressed as ΔH – TΔS, which is equivalent to H – TS in this equation.

Answer: K
 ΔG°´ represents the standard free energy change of a biochemical reaction at pH 7, temperature 37°C, and standard concentrations of reactants and products.

Matching -Spontaneous Processes Are Characterized by a Change in Gibbs Free