Mark ALL CORRECT statements: ¨ The entropy of elements in the standard state is
ID: 1028107 • Letter: M
Question
Mark ALL CORRECT statements: ¨
The entropy of elements in the standard state is defined as zero. ¨
Entropies of vaporization are always positive. ¨
The isothermal expansion of an ideal gas increases the entropy of the system. ¨
In micro-canonical (NVE) ensembles in equilibrium all microstates are equally probable. ¨
The binding of ligand molecules to proteins in solution always reduces the entropy of the system. ¨
Only chemical reactions with a positive reaction entropy occur spontaneously. ¨
The entropy change involved in heating any substance at constant pressure can always be computed as S= n Cpm ln t2/t1 . ¨
The heat capacity of all liquids made up of linear molecules is equal. ¨
The entropy of vaporization for a liquid can be computed from the enthalpy of vaporization and the boiling temperature Tm.
¨ Mixing two ideal gases decreases the entropy. ¨
If a reaction has a negative standard reaction free energy, all reactant molecules will be consumed to form the product. ¨
The standard formation free energy of a substance can be calculated from the tabulated enthalpies of formation, the entropy of the substance and the entropy of the elements that it is made of. ¨
The entropy change of an adiabatic expansion (q=0) of an ideal gas is 0. ¨
The entropy of vaporization for many liquids is similar as long as the molecules don’t form hydrogen bonds. ¨
A system in equilibrium has minimized its free energy.
If you could explain your selections, that would be very helpful
Explanation / Answer
the correct statements are as follows-
Entropies of vaporization are always positive. ¨
The isothermal expansion of an ideal gas increases the entropy of the system. ¨
The entropy of vaporization for a liquid can be computed from the enthalpy of vaporization and the boiling temperature Tm.
The binding of ligand molecules to proteins in solution always reduces the entropy of the system. ¨
Only chemical reactions with a positive reaction entropy occur spontaneously. ¨
The heat capacity of all liquids made up of linear molecules is equal. ¨
The standard formation free energy of a substance can be calculated from the tabulated enthalpies of formation, the entropy of the substance and the entropy of the elements that it is made of. ¨
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.