State whether the following phrases pertain to (A) spontaneity, (B) reversibilit
ID: 3308753 • Letter: S
Question
State whether the following phrases pertain to (A) spontaneity, (B) reversibility, (C) both spontaneity and reversibility, or (D) neither spontaneity nor reversibility (12 pt)
a) Established for G<0 at constant T.
b) Established for S<0.
c) Established for a process in which the work done is a maximum.
d) Illustrated by the migration of a solute from a region of high concentration to low concentration.
e) Required for determination of S by the heat transferred.
f) Implies that the coupling of coupled reaction is very efficient.
Explanation / Answer
a) The reaction can spontaneously proceed to the right A B
b) When S < 0 and H < 0, the process will be spontaneous at low temperatures and non-spontaneous at high temperatures
c) In a reversible process like Carnot cycle, work done is maximum.
d) both spontaneity and reversibility
e) This applies whether the process is reversible or irreversible
f) neither spontaneity nor reversibility