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What limit does the second law of thermodynamics impose on the efficiency of a heat engine?
The second law of thermodynamics imposes a limit on the efficiency of a heat engine by stating that no engine can be 100 efficient in converting heat into work. This means that there will always be some heat loss in the process, limiting the efficiency of the engine.
What temperature is required to transfer waste heat to the environment for a heat engine to be a 100 percent efficient?
In order for a heat engine to be 100 percent efficient, the temperature of the cold reservoir where waste heat is transferred should be absolute zero (0 Kelvin). This is not achievable in practice, as it violates the second law of thermodynamics.
Explain whether or not a heat engine could be made 100 percent efficient by eliminating friction?
Even if the friction were totally eliminated, a heat engine still could not convert heat completely into work and be 100 percent efficient. Instead, the efficiency of an internal combustion engine depends on the difference in the temperature of the burning gases in the cylinder and the temperature of the burning gases in the cylinder and the temperature of the air outside the engine.
What temperature is required to transfer waste heat to the environment for a heat engine to be 100 percent efficient?
A heat engine can never be 100% efficient due to the second law of thermodynamics, which states that some heat energy will always be lost to the surroundings. The temperature required for maximum efficiency is the temperature of the heat source for the engine. The efficiency of a heat engine is determined by the temperature difference between the heat source and the environment.
Can a heat engine convert its entire heat into work?
No, due to the second law of thermodynamics, a heat engine cannot convert all of its heat energy into work. Some heat will always be lost to the surroundings, decreasing the efficiency of the process.
What limit does the second law of thermodynamics impose on the efficiency of a heat engine?
The second law of thermodynamics imposes a limit on the efficiency of a heat engine by stating that no engine can be 100 efficient in converting heat into work. This means that there will always be some heat loss in the process, limiting the efficiency of the engine.
Heat can be completely transformed into work if you use a supercharged V8 engine?
While a supercharged V8 engine can convert a significant amount of heat energy into mechanical work, it cannot achieve complete transformation due to the second law of thermodynamics. This law states that some energy will always be lost as waste heat during the conversion process. Therefore, while the engine is efficient, it cannot convert all heat into work. Instead, it operates within limits that prevent 100% efficiency.
The 2nd law of thermodynamics has three forms?
It has several forms, all of which are more or less equivalent, even though they don't seem so, at first glance. For example:No heat engine can be more efficient than a theoretical Carnot engine. In a closed system, entropy can never decrease.There are irreversible processes.
What temperature is required to transfer waste heat to the environment for a heat engine to be a 100 percent efficient?
In order for a heat engine to be 100 percent efficient, the temperature of the cold reservoir where waste heat is transferred should be absolute zero (0 Kelvin). This is not achievable in practice, as it violates the second law of thermodynamics.
Explain whether or not a heat engine could be made 100 percent efficient by eliminating friction?
Even if the friction were totally eliminated, a heat engine still could not convert heat completely into work and be 100 percent efficient. Instead, the efficiency of an internal combustion engine depends on the difference in the temperature of the burning gases in the cylinder and the temperature of the burning gases in the cylinder and the temperature of the air outside the engine.
What temperature is required to transfer waste heat to the environment for a heat engine to be 100 percent efficient?
A heat engine can never be 100% efficient due to the second law of thermodynamics, which states that some heat energy will always be lost to the surroundings. The temperature required for maximum efficiency is the temperature of the heat source for the engine. The efficiency of a heat engine is determined by the temperature difference between the heat source and the environment.
Steam engine is used in what field of science?
Thermodynamics
Why were the laws of thermodynamics devloped?
to help improve the steam engine
Can a heat engine convert its entire heat into work?
No, due to the second law of thermodynamics, a heat engine cannot convert all of its heat energy into work. Some heat will always be lost to the surroundings, decreasing the efficiency of the process.
What is the carnot statement of the second law of thermodynamics?
The efficiency of a quasi-static or reversible Carnot cycle depends only on the temperatures of the two heat reservoirs, and is the same, whatever the working substance. A Carnot engine operated in this way is the most efficient possible heat engine using those two temperatures
Which engine is more efficient diesel engine or gasoline engine?
Diesel engines are more efficient than gasoline engines.
What is more efficient the gasoline engine or diesel engine?
The diesel is more efficient but more expensive to build.
