Question

what do mean by carnot theorem explain

Answer 1

Carnot's theorem states:

All heat engines between two heat reservoirs are less efficient than a Carnot heat engine operating between the same reservoirs.Every Carnot heat engine between a pair of heat reservoirs is equally efficient, regardless of the working substance employed or the operation details.

The formula for this maximum efficiency is

{\displaystyle \eta _{\text{max}}=\eta _{\text{Carnot}}=1-{\frac {T_{\mathrm {C} }}{T_{\mathrm {H} }}}}

where TC is the absolute temperature of the cold reservoir, TH is the absolute temperature of the hot reservoir, and the efficiency {\displaystyle \eta } is the ratio of the work done by the engine to the heat drawn out of the hot reservoir.

Based on modern thermodynamics, Carnot's theorem is a result of the second law of thermodynamics. Historically, it was based on contemporary caloric theory and preceded the establishment of the second law.[1]

Answer 2

Explanation:

The Carnot cycle is a theoretical ideal thermodynamic cycle proposed by French physicist Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. ... When a system is taken through a series of different states and finally returned to its initial state, a thermodynamic cycle is said to have occurred