An inventor has created a heat engine that extracts energy from geothermal hotspots and geysers like Old Faithful at Yellowstone National Park. She claims to turn all of the geothermal energy into work. Such a device is

Question

Quizplus · Accepted Answer

The claim to turn all of the geothermal energy into work violates Kelvin's statement of the second law of thermodynamics, which states that it is impossible for any device that operates on a cycle to receive heat from a single reservoir and produce a net amount of work.

An Inventor Has Created a Heat Engine That Extracts Energy