Problem 1 (60 points, based on a problem in Felder and Rousseau) Steam at 20 bar absolute pressure is expanded through a nozzle to a pressure of 1 bar absolute and a temperature of 110 BC. The steam entering the nozzle consists of 95% vapor and 5% liquid (quality - 95%). You need to estimate the velocity of the steam leaving the nozzle. To simplify the problem, you may assume that the velocity of the steam approaching the nozzle and the transfer of heat between the nozzle and the surroundings may be neglected. Use a basis of 1 kg steam. a) There is an engineering term for a system that does not exchange heat with its surroundings. What is that term? b) Calculate the velocity of the steam leaving the nozzle, making the assumptions stated in the