In a Carnot engine the hot reservoir is 72.0 C warmer than the cold reservoir. The engine’s efficiency is 12.5%. What are the Kelvin temperatures of the two reservoirs?
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In a Carnot engine the hot reservoir is 72.0 C warmer than
the cold reservoir. The engine’s efficiency is 12.5%. What are the Kelvin
temperatures of the two reservoirs?
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- Problem 5: Suppose a Carnot engine has an efficiency of 45 % and a cold reservoir temperature of 28.5°C. Part (a) What is the hot reservoir temperature, in degrees Celsius, of this Carnot engine? Part (b) What must the hot reservoir temperature be, in degrees Celsius, for a real heat engine that has an efficiency of 45, which is 70% of the maximum efficiency? Assume it has the same cold reservoir, at 28.5°C.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?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?
- A certain gasoline engine has an efficiency of 27.5 %. What would the hot reservoir temperature be, in degrees Celsius, for a Carnot engine having that efficiency, if it operates with a cold reservoir temperature of 200°C?A Carnot engine is operated between two heat reservoirs attemperatures of 520 K and 300 K. What is the thermal efficiency of the engine?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 =A Carnot heat engine operates between Tc= 277 K and Th=459 K. What is its efficiency? O 1.66 O 0.6 O 0.66 O 0.4A reversed carnot engine absorbs 40000 KW from the heat sink. The temperature of the heat sink is -20 degrees celsius and the temperature of the heat reservoir is 70 degrees celsius . Determine the power required of the engine.
- If heat absorbed by the engine = 15,000 Joule and Low temperature of 450 K High temperature of 850 K, what is the efficiency by the Carnot engine? Group of answer choices 52.94 % 47.06 % 15.34 % 74.50 %The cylinder contains 5 kg of water at just under 100◦C. The cylinder has aradius of r = 7.50 cm, and the piston has a mass of 2 kg. The piston is freeto move such as to maintain a constant pressure. The power of the heateris 1100 W. After the water has completely turned to steam and the heatercontinues to transfer energy to the steam at the same rate, how fast is thepiston rising ? Model the steam as an ideal gas with molecular weight ofM = 18 g/mole.