Multiple Choice
A heat engine operates between a hot reservoir at 1500 K and a cold reservoir at 500 K.During each cycle,1.0 × 10⁵ J of heat is removed from the hot reservoir and 5.0 × 10⁴ J of work is performed.
-A heat pump is found to remove 2400 J of heat from the exterior of a house and deliver 3500 J of heat to the interior of the house.What is the coefficient of performance of the heat pump?
A) 1.5
B) 3.2
C) 2.7
D) 3.9
E) 2.2
Correct Answer:

Verified
Correct Answer:
Verified
Q29: An ideal monatomic gas expands isothermally from
Q30: A paddle wheel frictionally adds thermal energy
Q31: A container holding 1.2 kg of water
Q32: Enclosed beneath the moveable piston in the
Q33: In an isothermal process,1.59 moles of an
Q35: Complete the following statement: The first law
Q36: Beneath the moveable piston in the drawing,2.25
Q37: Which one of the following pressure-volume graphs
Q38: An ideal monatomic gas undergoes an adiabatic
Q39: A thermally isolated sample of an ideal