001 (part 1 of 3) 10.0 points An engine absorbs 2550 J from a hot reservoi and expels 1219 J to a cold reservoir in each cycle What is the engine’s

001 (part 1 of 3) 10.0 points

An engine absorbs 2550 J from a hot reservoi

and expels 1219 J to a cold reservoir in each

cycle

What is the engine’s efficiency?

002 (part 2 of 3) 10.0 points

How much work is done in each cycle?

Answer in units of J

003 (part 3 of 3) 10.0 points

What is the mechanical power output of the

engine if each cycle lasts for 0.475 s?

Answer in units of kW.

004 10.0 points

In one cycle, an engine burning a mixture

of air and methanol (methyl alcohol) absorbs

623 J and expels 423 .J.

What is the engine’s efficiency?

005 (part 1 of 2) 10.0 points

A heat engine absorbs 326 J of thermal energy

and performs 37.6 J

of work in each cycle

Find the efficiency of the engine

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