5. Heat is removed from the compartment of a refrigerator at a rate of 250 kJ/min. The refrigerator consumes 0.8 kW, determine the COP of the refrigerator. 6. It has been proved experimentally by joule that the internal energy is a function of o Temperature only o Pressure only o Volume only o All together 7. The combination of flow energy and internal energy gives - during which there is no heat transfer

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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5. Heat is removed from the compartment of a refrigerator at a rate of 250 kJ/min. The
refrigerator consumes 0.8 kW, determine the COP of the refrigerator.
6. It has been proved experimentally by joule that the internal energy is a function of
o Temperature only
o Pressure only
o
Volume only
o All together
7. The combination of flow energy and internal energy gives -
8. A process during which there is no heat transfer
o Adiabatic
o Isentropic
o Polytropic
o Isothermal
9. Heat is transferred to a heat engine from a furnace at a rate of 80 MW. If the rate of
waste heat rejection to a nearby river is 50 MW, determine the thermal efficiency.
10. The---- is related to the molecular structure and activity of a system.
o Potential energy
o Internal energy
o Kinetic energy
o Total energy
Transcribed Image Text:5. Heat is removed from the compartment of a refrigerator at a rate of 250 kJ/min. The refrigerator consumes 0.8 kW, determine the COP of the refrigerator. 6. It has been proved experimentally by joule that the internal energy is a function of o Temperature only o Pressure only o Volume only o All together 7. The combination of flow energy and internal energy gives - 8. A process during which there is no heat transfer o Adiabatic o Isentropic o Polytropic o Isothermal 9. Heat is transferred to a heat engine from a furnace at a rate of 80 MW. If the rate of waste heat rejection to a nearby river is 50 MW, determine the thermal efficiency. 10. The---- is related to the molecular structure and activity of a system. o Potential energy o Internal energy o Kinetic energy o Total energy
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