A carnot engine works between 200^(@)C and 0^(@)C first and then between 0^(@)C and -200^(@)C. Compare the values of efficiencies in the two cases.

A carnot engine works between 200^(@)C and 0^(@)C first and then betwe

1.	A carnot engine works between 200^(@)C and 0^(@)C first and then between 0^(@)C and -200^(@)C. Compare the values of efficiencies in the two cases.
Answer» Solution :`ETA _(1) = ( 473- 273) 473 = 200 // 473 ) , eta _(2)= (273 - 73) //273 = 200 // 273 , eta _(1) // eta _(2) = 0.577`