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If an automobile engine burns petrol at a temperature of 816^(@)Cand if surrounding temperature is 21^(@)C,what is its maximum percentage ?

Answer»

SOLUTION :% EFFICIENCY - `[(T_h-T_c)/T_h]XX100`
Here
`T_h`=816+273=1089 K , `T_c`=21+273=294 K
% Efficiency =`((1089-294)/1089)xx100`
% Efficiency =73%


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