Define; i) Heat engine

ii) Heat pump

b) Compare and contrast a heat engine and heat pump.

c) The energy absorbed by an engine is three times as great as the work it performs.

i) What is its thermal efficiency?

ii) What fraction of the energy absorbed is expelled to the cold reservoir?

iii) What is the power output of the engine if the energy input is 1 650 J each cycle

and it goes through two cycles every 3 seconds?

d) A heat pump with a COP of 2.50 is used to cool a room. Calculate:

i) How much work must a do in order to extract 1.00 MJ of thermal energy from the

outdoors (the cold reservoir)?

ii) If the unit operates at 0.500 hp, how long will the process take?​