15. Based on Gibbs Free Energy equation ΔG = ΔH − T ΔS, a process will occur spontaneously when(A) ΔG is positive and ΔS is positive (B) ΔH is positive and ΔT is negative(C) ΔH is negative and ΔS is positive (D) ΔH is negative and ΔS is negative

22. Of the statements below, which one can best explain why CH4 is a gas at STP, while C8H18 is a liquid andC20H42 is a solid?(A) C20H42 has the greatest ionic interaction between its molecules.(B) C20H42 has a greater amount of hydrogen bonding than CH4 or C8H18.(C) There is more dipole-dipole interaction between molecules of greater mass.(D) There are more Van der Waals (dispersion) forces between nonpolar molecules that are greater in mass.23-25. An ideal gas expands to the vacuum isothermally and irreversibly.

15. Based on Gibbs Free Energy equation ΔG = ΔH − T ΔS, a process will occur spontaneously when
(A) ΔG is positive and ΔS is positive
(B) ΔH is positive and ΔT is negative
(C) ΔH is negative and ΔS is positive
(D) ΔH is negative and ΔS is negative

相關試題

相關試卷

15. Based on Gibbs Free Energy equation ΔG = ΔH − T ΔS, a process will occur spontaneously when(A) ΔG is positive and ΔS is positive(B) ΔH is positive and ΔT is negative(C) ΔH is negative and ΔS is positive(D) ΔH is negative and ΔS is negative

相關試題

相關試卷

15. Based on Gibbs Free Energy equation ΔG = ΔH − T ΔS, a process will occur spontaneously when
(A) ΔG is positive and ΔS is positive
(B) ΔH is positive and ΔT is negative
(C) ΔH is negative and ΔS is positive
(D) ΔH is negative and ΔS is negative