gasoline engine is running, an amount of gasoline containing 11,700 J of chemical potential energy is burned in 1 s. During that second, the engine does 3,900 J of work. (a) What is the engine's

An engine has a hot reservoir of 520K and a low-temperature reservoir of 330K. What is the theoretical efficiency of this engine? Answer in units of %

50 J of work are done on a refrigerator with a coefficient of performance of 4.0. How much heat is (a) extracted from the cold reservoir and (b) exhausted to the hot reservoir?

Iceland has both high geothermal activity, with high temperatures near the surface, and abundant cold surface water. Iceland has many power plants that take advantage of the proximity of these natural hot and cold reservoirs. One plant uses an underground source at 122°C as the hot reservoir and a nearby lake at 5°C as the cold reservoir. The plant draws 16 MW from the hot reservoir to produce 1.8 MW of electricity. How does the actual efficiency of the plant compare to the theoretical maximum efficiency?

Question 6. in one cycle, a heat engine does 700J of work and releases 1450 J of heat to a lower-temperature reservoir. What is the efficiency of this engine, in percent?

The Mach 5 racer driven by Speed Racer has an engine that pulls 14250J of heat energy from a high temperature reservoir held at 1069°C to do 2985J of usable work. a) What is the efficiency of the Mach 5’s engine? b) If the ideal efficiency of the heat engine is 0.675, what is the temperature of the low temperature reservoir in degrees Kelvin?

Problem 3: Suppose a subject on a treadmill puts out work at the rate of 95 W while consuming oxygen at the rate of 2.00 L/min. Assume this rate of oxygen consumed corresponds to a power output of 700 W. What is the percent efficiency of the subject? 7 (%) = ||

An engine takes in 600 J and exhausts 450 J each second is running. What is the engine's efficiency?