An engine has an efficiency of 1/6.when the temperature of sink is redused by 62*c,itsefficiency is doubled.te

temperatures of the source is?

An engine has an efficiency of 1/6.when the temperature of sink is redused by 62*c,itsefficiency is doubled.te
Ok, is it a Carnot machine ?





Because if it's, then :





efficiency = n = 1 - T2 / T1





1/6 = 1 - T2 / T1





T2 / T1 = 5 / 6





T2 = 5k





T1 = 6k





when T2, decreased (62+273) K





1/3 = 1 - (T2 - 335) / x





T2 = 5k





5k - 335 / 6k - x = 2/3





let's set k = 1





5 - 335 / 6-x = 2/3





30 - 5x - 335 = 6-x*2/3





-305 - 5x = 12 - 2x / 3





-915 - 15x = 12 - 2x





-927 = 13x





x = -71.3





So, the Temperature of the source has decreased in 71.3





Hope that helps