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Tardigrade
Question
Chemistry
For vaporization of water at 1 atmospheric pressure, the values of Δ H and Δ S are 40.63 kJ mol-1 and 108.8 JK-1 mol-1, respectively. The temperature when Gibbs energy change (Δ G) for this transformation will be zero, is
Q. For vaporization of water at 1 atmospheric pressure, the values of
Δ
H
and
Δ
S
are
40.63
k
J
m
o
l
−
1
and
108.8
J
K
−
1
m
o
l
−
1
, respectively. The temperature when Gibbs energy change
(
Δ
G
)
for this transformation will be zero, is
3696
180
AIPMT
AIPMT 2010
Thermodynamics
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A
393.4 K
15%
B
373.4 K
53%
C
293.4 K
13%
D
273.4 K
19%
Solution:
Δ
G
=
Δ
H
−
T
Δ
S
Δ
G
=
0
Given
Δ
H
=
T
Δ
S
,
T
=
108.8
40.63
×
1
0
3
=
373.4
K