Question

Which of the following shows the correct changes in thermodynamic properties for a chemical reaction in which amino acids are linked to form a protein?

A) +ΔH, +ΔS, +ΔG
B) +ΔH, -ΔS, -ΔG
C) +ΔH, -ΔS, +ΔG
D) -ΔH, -ΔS, +ΔG
E) -ΔH, +ΔS, +ΔG

Answer 1

The correct changes in thermodynamic properties for a chemical reaction in which amino acids are linked to form a protein are +ΔH, -ΔS, +ΔG.

Step-by-step explanation:

The correct changes in thermodynamic properties for a chemical reaction in which amino acids are linked to form a protein are option C) +ΔH, -ΔS, +ΔG.

The enthalpy change (ΔH) is positive because energy is required to form the protein by breaking the bonds in the amino acids. The entropy change (-ΔS) is negative because the formation of a more ordered protein from individual amino acids decreases the disorder. The Gibbs free energy change (ΔG) is positive because the reaction is not spontaneous and requires an input of energy to proceed.