Consider 6.0 kg of austenite containing 0.45 wt% c, cooled to below 727°c (1341°f). a)- what is the proeutectoid phase? b)- how many kilograms each of total ferrite and cementite form? c)- how many kilograms each of pearlite and the proeutectoid phase form?

Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain