Question

A Carnot engine has an efficiency of 48% in the working substance enter system at 400 degree Celsius what is the exhaust temperature​

Answer 1

Answer:

Taking the Sink Temperature(T2) = 27 degree celsius = 300 kelvin

Efficiency(eta) be 25% = .25

Source Temperature(T1) = ?

Efficiency= (T1 - T2) / T1

Efficiency= 1 -T2/T1

T2/T1 = 1 - Efficiency

T1 = T2/(1 - Efficiency)

T1= 300/(1-.25)

T1 = 400 kelvin = 127 degree celsius