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Recent questions tagged entropy
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Calculate the efficiency of the heat engine
asked
Sep 2, 2017
in
TD
by
chandu
(
215k
points)
iasprelims
2002
td
entropy
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Find the entropy changes for the iron cube and the water. Is the process irreversible? If so, why?
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
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gate
1996
td
entropy
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An ideal gas of mass m is contained in a rigid tank of volume V at a pressure P.
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Aug 29, 2017
in
TD
by
chandu
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215k
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gate
1996
td
entropy
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One kg of air under goes irreversible process between equilibrium state 1 and equilibrium state 2.
asked
Aug 29, 2017
in
TD
by
chandu
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215k
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gate
2015
td
entropy
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Two identical metal blocks L and M (specific heat = 0.4 kJ/kg.K), each having a mass of 5 kg, are initially at 313 K
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2014
td
entropy
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If the entropy of the saturated liquid is 0.88 kJ/kg.K, the entropy (in kJ/kg.K) of saturated vapour is ___
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2014
td
entropy
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The entropy generated (in W/K) due to the heat transfer through the wall is ___________
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2014
td
entropy
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The heat loss during the process is Q. The entropy change DS of the gas is
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2012
td
entropy
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If the air has to flow from station P to station Q, the maximum possible value of pressure in kPa at station Q is
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2011
td
entropy
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Consider the following two processes
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2010
td
entropy
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A cyclic device operates between three thermal reservoirs, as shown in the figure.
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2008
td
entropy
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A vapour absorption refrigeration system is a heat pump with three thermal reservoirs s shown in the figure.
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2005
td
entropy
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The entropy change for the system during the process in kJ/K is
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2003
td
entropy
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Considering the relationship TdS = dU + PdV
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2003
td
entropy
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The entropy change of the universe is
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
1995
td
entropy
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votes
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Calculate the thermal efficiency of the heat engine
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
1993
td
entropy
0
votes
0
answers
Which one of the following pairs of equations describes an irreversible heat engine?
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2014
td
entropy
0
votes
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answers
The entropy change of the universe is
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2010
td
entropy
0
votes
0
answers
If a closed system is undergoing an irreversible process, the entropy of the system
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2009
td
entropy
0
votes
0
answers
The change in entropy due to mixing, per mole of oxygen, is given by
asked
Aug 29, 2017
in
TD
by
chandu
(
215k
points)
gate
2008
td
entropy
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