Entropy and Second Law of Thermodynamics
AP Physics 2 · Flashcards · Application
AP PHYSICS 2 · FLASHCARDS
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QUESTION
Find the entropy change for
Q
=
100
J
Q = 100 \, J
Q
=
100
J
and
T
=
25
K
T = 25 \, K
T
=
25
K
.
QUESTION
Calculate entropy change for
Q
=
500
J
Q = 500 \, J
Q
=
500
J
and
T
=
300
K
T = 300 \, K
T
=
300
K
.
QUESTION
Calculate the entropy change for
Q
=
150
J
Q = 150 \, J
Q
=
150
J
and
T
=
75
K
T = 75 \, K
T
=
75
K
.
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ANSWER
Δ
S
=
2
J
/
K
\Delta S = 2 \, J/K
Δ
S
=
2
J
/
K
. Using
Δ
S
=
Q
/
T
=
150
/
75
=
2
\Delta S = Q/T = 150/75 = 2
Δ
S
=
Q
/
T
=
150/75
=
2
J/K.
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