A heat engine operates between two reservoirs at temperature of 25°c and 300°c what is the maximum efficiency for this engine

Calculate the maximum theoretical efficiency of a heat engine that operates with the hot steam temperature at 390 °C and the cool steam temperature at 230°C. Please give your answer in two decimals, NOT percentage. For example, efficiency of 0.62. Your Answer: Answer

Steam locomotives have an efficiency of 15.0% and operate with a hot steam temperature of 425°C. (a) What would the cold reservoir temperature (in °C) be if this were a Carnot engine? °C (b) What would the maximum efficiency of this steam engine be if its cold reservoir temperature were 150°C? %

Consider an engine with efficiency of 25 percent. How much must the temperature of the hot reservoir increase, so that the efficiency increase to 50 percent. The temperature of the cold reservoir remains at 5 degree.

Steam engines have boilers operating at 500K. The energy from a burning fuel converts water into steam and this steam then moves the piston. the temperature of the cold reservoir from the outside air is around 300K and the efficiency of both engines is 40%. to be able to increase the efficiency of the two machines again by increasing Th or by reducing Tc. Identify what factors cause an increase in engine efficiency in both engines and which are more effective in increasing engine efficiency?

Suppose a heat engine design makes a square on a PV diagram, using a monatomic gas. The high pressure is 3P and low pressure is P. The high volume is 3V and low volume is V. What is the efficiency of the heat engine?

In one cycle a heat engine absorbs 520 J from a high-temperature reservoir and expels 310 J to a low-temperature reservoir. If the efficiency of this engine is 57% of the efficiency of a Carnot engine, what is the ratio of the low temperature to the high temperature in the Carnot engine? Tlow Thigh  =

In a Carnot cycle if the heat added is 570 J and the heat rejected is 180 J then what is the work net? O 570 J O 3.17 J O 390 J

QUESTION 4 In a single cycle, heat engine extracts 8.00 kcal of heat from a hot reservoir and exhausts 5.00 kcal of heat int a cold reservoir. What is the efficiency of this engine? а. 67.5% b. 77.5% C. 57.5% d. 47.5% е. 37.5%