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Recent questions tagged carnot cycles
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A computer chip dissipates 2 kJ of electric work over time and rejects that as heat transfer from its 50°C surface to 25°C air.
asked
Apr 1, 2019
in
Mathematics
by
kratos
energy equation
available energy
thermodynamics
carnot cycles
reversible work
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votes
1
answer
Differences in surface water and deep water temperature can be utilized for power generation. It is proposed to construct
asked
Mar 31, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
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1
answer
Air in a piston/cylinder goes through a Carnot cycle with the P-v diagram . The high and low temperatures are 600 K and 300 K
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Mar 20, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
ideal gas
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1
answer
A 10-m^3 tank of air at 500 kPa, 600 K acts as the high-temperature reservoir for a Carnot heat engine that rejects heat at 300 K.
asked
Mar 14, 2019
in
Class 12
by
kratos
neet
jee mains 2018
aiims
class-11
jee
carnot cycles
thermodynamics
chemical thermodynamics
jee main
jee mains
heat and thermodynamics
+2
votes
1
answer
In a Carnot engine with ammonia as the working fluid, the high temperature is 60°C and as QH is received, the ammonia
asked
Mar 12, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
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1
answer
Graph of p against 1/V is
asked
Mar 10, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
ideal gas
+2
votes
1
answer
A household freezer operates in a room at 20°C. Heat must be transferred from the cold space at a rate of 2 kW to maintain
asked
Mar 10, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
available energy
inequality of clausius
reversible work
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1
answer
Air in a rigid 1 m^3 box is at 300 K, 200 kPa. It is heated to 600 K by heat transfer from a reversible heat pump that receives energy
asked
Mar 7, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
reversible processes
entropy of ideal gases
available energy
reversible work
polytropic processes
steady state
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votes
1
answer
The lowest boiling point of helium is due to its (a) inertness (b) gaseous nature
asked
Mar 6, 2019
in
Class 12
by
kratos
neet
jee
carnot cycles
thermodynamics
jee mains
p - block element
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1
answer
Air in a rigid 40 ft^3 box is at 540 R, 30 lbf/in.^2. It is heated to 1100 R by heat transfer from a reversible heat pump that receives energy
asked
Mar 6, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
+2
votes
1
answer
A house is heated by an electric heat pump using the outside as the lowtemperature reservoir. For several different winter outdoor temperatures,
asked
Mar 6, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
heat transfer
+2
votes
1
answer
If the efficiency of a power plant goes up as the low temperature drops why not let the heat rejection go to a refrigerator
asked
Mar 4, 2019
in
Class 11
by
kratos
carnot cycles
thermodynamics
the second law of thermodynamics
class-11
+2
votes
1
answer
A coflowing heat exchanger has one line with 2 kg/* saturated water vapor at 100 kPa entering. The other line is 1 kg/* air at 200 kPa,
asked
Feb 20, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
reversible processes
law efficiency
steady state
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1
answer
An inventor has developed a refrigeration unit that maintains the cold space at −10°C, while operating in a 25°C room.
asked
Feb 20, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
inequality of clausius
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vote
1
answer
Define Carnot vapour Cycle. Draw the carnot vapour cycle on T-* diagram and make the different thermodynamics processes.
asked
Feb 19, 2019
in
Class 11
by
kratos
carnot cycles
thermodynamics
class-11
ideal gas
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vote
1
answer
Does the statement of Clausius require a constant T for the heat transfer as in a Carnot cycle?
asked
Feb 16, 2019
in
Class 11
by
kratos
clausius
class-11
carnot cycles
thermodynamics
entropy
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vote
1
answer
The ideal gas equation is
asked
Feb 13, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
ideal gas
+3
votes
1
answer
A heat engine receives 6 kW from a 250°C source and rejects heat at 30°C. Examine each of three cases with respect
asked
Feb 9, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
inequality of clausius
+2
votes
1
answer
A thermal storage is made with a rock (granite) bed of 70 ft^3 which is heated to 720 R using solar energy. A heat engine receives a QH
asked
Feb 1, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
entropy of a liquid or a solid
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votes
1
answer
A house is heated by a heat pump driven by an electric motor using the outside as the low-temperature reservoir.
asked
Jan 28, 2019
in
Mathematics
by
kratos
carnot cycles
thermodynamics
heat transfer
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