In a flow process, you mix 200 9/5 of benzene at 308.15 K with 300 9/5 of 2-propanol at 298.15 K Using Figure, answer thefollowing;A What is the concentration of the resulting mixture?B. Estimate the heat effect (added/removed) of this mixing if it is done such that the resulting temperature is 298.15 KC. Ifthe mixing were done in an adiabatic fashion, estimate the resulting solution temperature. Flgure Molar enthalpy for the benzene + 2-propanol system at two temperatures (blue : 298.15 K and black : 308.15 K).

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.

With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.