Question

what is the efficiency of a carnot engine working between temperature 127℃ and 27℃ ????​

Answer 1

Answer:

Explanation:

As per the question, we are asked to calculate the efficiency of the Carnot's engine.

The efficiency of a  Carnot's engine is calculated as -

                                         

       

 We know that 't' degree celsius =[ 273+t] K    [K stands for kelvin]

 

                = 127+273 K

                = 400 K

       

               = 27+273 K

               = 300 K

 The efficiency  

                                       = 1-0.75

                                       = 0.25 i.e 25%    [ans]