What is the Carnot efficiency (in percent) of a heat engine operating between the temperatures of 355°C (628 K) and 200°C (473 K)?

A particular power plant operates with a heat-source reservoir at 350°C and a heatsink reservoir at 30°C. It has a thermal efficiency equal to 55% of the Carnot-engine thermal efficiency for the same temperatures. What is the thermal efficiency of the plant? To what temperature must the heat-source reservoir be raised to increase the thermal efficiency of the plant to 35%? Again, η is 55% of the Carnot-engine value

A heat engine uses a heat source at 530 ∘C and has an ideal (Carnot) efficiency of 28 % . To increase the ideal efficiency to 43 % , what must be the temperature of the heat source?

A heat engine is being designed to have a Carnot efficiency of 60% when operating between two heat reservoirs. (a) If the temperature of the cold reservoir is 20°C, what must be the temperature of the hot reservoir? °C (b) Can the actual efficiency of the engine be equal to 60%? O Yes O No Explain your answer.

What is the Carnot efficiency (in percent) of a heat engine operating between the temperatures of 360°C (633 K) and 200°C (473 K)?

A heat engine operates between a reservoir at 27°C and one at 374°C. What is the maximum efficiency possible for this engine?

A heat engine is being designed to have a Carnot efficiency of 59% when operating between two heat reservoirs. (a) If the temperature of the cold reservoir is 22°C, what must be the temperature of the hot reservoir? °C(b) Can the actual efficiency of the engine be equal to 59%? YesNo     Explain your answer.

The first law of thermodynamics, ΔU = Q - W, when written as Q = W + ΔU, says that the heat into a system can be used to do work and/or increase the internal energy. Therefore, which process requires the most heat? Isobaric, isochoric, or adiabatic?