轉學考-普通化學題庫下載題庫

17. When heat is added to proteins, the hydrogen bonding in the secondary structure breaks apart. What are the algebraic signs of AH and AS for the denaturation process?
(A) ΔΗ ＜ 0 and △S ＜ 0
(B) ΔΗ = 0 and △S ＞ 0
(C) ∆H ＞ 0 and △S ＞ 0
(D) ΔΗ ＜ 0 and △S ＞ 0
(E) ΔΗ ＞ 0 and △S ＜ 0