(A) Efficiency of a reversible ingine is 100% (maximum) when the temperature of sink is `-273^(@)C`.
(R) Efficiency of engine `eta=(T_(2)-T_(1))/(T_(2))`

How can the efficiency of a reversible engine be 100%?

Efficiency of carnot heat engine,if source temperature is T1K and sink temperature is T2K

The efficiency of Carnot heat engine is 0.5 when the temperature of the source is T_(1) and that of sink is T_(2) . The efficiency of another Carnot's heat engine is also 0.5 . The temperature of source and sink of the second engine are respectively

The efficiency of Carnot's heat engine is 0.5 when the temperature of the source is T_(1) and that of sink is T_(2) . The efficiency of another Carnot's heat engine is also 0.5 Then temperature of source and sink of the second engine are respectively

The efficiency of carnot's heat engine is 0.5 when the temperature of the source is T_(1) and that of sink is T_(2) .The efficiency of another carnot's heat engine is also 0.5.the temperature of source and sink of the second engine are respecitvely

The efficiency of carnot's heat engine is 0.5 when the temperature of the source is T_(1) and that of sink is T_(2) .The efficiency of another crot's heat engine is also 0.5.the temperature of source and sink of the second engine are respecitvely

The thermal efficiency of a heat engine will be 100% when