A Carnot engine, whose sink is at 300 K, has an efficiency of 40%. By how much should the temperature of source be increased, so as to increase the efficiency by 50% of original efficiency?
(a) 380 K
(b) 275 K
(c) 325 K
(d) 250 K
I got this question in my homework.
Asked question is from Isothermic and Adiabatic Process in portion Kinetic Theory of Gases of Engineering Physics I