An insulated glass tube and condenser are mounted on a reboiler containing benzene and toluene. the condenser returns liquid reflux down the wall of the tube. at one point in the tube, the temperature is 170f, the vapor contains 30 mol% toluene, and the reflux contains 40 mol% toluene. the thickness of the stagnant vapor film is estimated to be 0.1 in. the molar latent heats of benzene and toluene are equal. calculate the rate at which toluene and benzene are being interchanged by equimolar

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.