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John Pang
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Another question, according to catnot efficiency, Qh/Ql=Th/Tl .Can anyone help explain how is this equation derived? It is really frustrating as my textbook doesn't explain this.
John Pang said:according to catnot efficiency, Qh/Ql=Th/Tl .Can anyone help explain how is this equation derived? It is really frustrating as my textbook doesn't explain this.
John Pang said:Thx. So it can be easily derived from the equations U=3/2nRT , and change in U= Change in Q - W, right?
Carnot Efficiency is a measure of the maximum possible efficiency of a heat engine, which is the ratio of the work output to the heat input. It was first described by French physicist Sadi Carnot in 1824.
Carnot Efficiency is calculated using the formula Qh/Ql=Th/Tl, where Qh is the amount of heat absorbed from a hot reservoir, Ql is the amount of heat rejected to a cold reservoir, Th is the temperature of the hot reservoir, and Tl is the temperature of the cold reservoir.
Qh represents the amount of heat that is absorbed from a hot reservoir, while Ql represents the amount of heat that is rejected to a cold reservoir.
The temperature of the hot and cold reservoirs has a direct impact on the Carnot Efficiency. The higher the temperature difference between the two reservoirs, the higher the Carnot Efficiency will be.
Carnot Efficiency is considered to be the maximum possible efficiency because it is based on the idealized Carnot cycle, which is a reversible process with no energy losses. This means that no real heat engine can have an efficiency higher than the Carnot Efficiency.