Thermodynamics and Energy Changes (5E)
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QUESTION
At constant
T
T
T
and
P
P
P
, what sign of
Δ
G
\Delta G
Δ
G
indicates a spontaneous process?
QUESTION
For an adiabatic process, what is the heat transfer
q
q
q
?
QUESTION
State the definition of entropy change for a reversible process.
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ANSWER
Δ
S
=
q
rev
T
\Delta S=\frac{q_{\text{rev}}}{T}
Δ
S
=
T
q
rev
. For reversible processes at constant temperature, entropy change is reversible heat divided by temperature.
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