2.25. Water at 28°C flows in a straight horizontal pipe in which there is no exchange of al reither heat or work with the surroundings. Its velocity is 14 m s-1 in a pipe with an internal diameter of 2.5 cm until it flows into a section where the pipe diameter abruptly increases. What is the temperature change of the water if the downstream diameter is 3.8 cm? If it is 7.5 cm]? What is the maximum temperature change for an enlargement in the pipe?

Study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics. The backbone of chemical engineering thermodynamics is the four "fundamental equations of Gibbs," which can be applied to derive thermodynamic properties using relatively simple math.