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- 1. Multiple Choice
What is second law of thermodynamics?
change in Internal energy equal to difference of heat supplied and work done by the system
if two thermodynamic systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other
Energy neither create nor destroy but it is only can convert to another form
Although nett heat supplied in a cycle is equal to nett work done, gross heat supply must be always greater than work done
- 2. Multiple Choice
Heat sink is a ...............
Reservoir that rejects work
Reservoir that supplies heat
Reservoir that absorbs heat
Reservoir that produces work
- 3. Multiple Choice
Heat source is ..............
Reservoir that rejects work
Reservoir that absorbs heat
Reservoir that supplies heat
Reservoir that produce work
- 4. Multiple Choice
Choose figure that tells about a heat engine
- 5. Multiple Choice
Choose figure that tells about a reversed heat engine
- 6. Multiple Choice
What is a heat engine?
device that make heat flow from low temperature to high temperature
device that use heat to produce work
device that make heat flow from cold to hot
device that use work to produce heat
- 7. Multiple Choice
What is reversed heat engine?
Device that make heat flow from hot to cold
Device that make heat flow from cold to hot
Device that use work to supplies energy
device that use heat to produce workk
- 8. Multiple Choice
Choose the application of heat engine
power plant
locomotive engine
refrigerator
all above
- 9. Multiple Choice
Choose application of reversed heat engine
refrigerator
air conditioning
heat pump
all above
- 10. Multiple Choice
what is the difference between heat pump and air conditioning?
Desire output for heat pump is a QL and desire output for air conditioning is QH
Desire output for heat pump is a QH and desire output for air conditioning is QL
Desire input for heat pump is a QH and desire output for air conditioning is QL
Desire input for heat pump is a QH and desire output for air conditioning is QL
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