Aliquid stream containing 50.0 mole% benzene and the balance toluene at 25°c is fed to a continuous single-stage evaporator at a rate of 1320 mol/s. the liquid and vapor streams leaving the evaporator are both at 95.0°c. the liquid contains 42.5 mole% benzene and the vapor contains 73.5 mole% benzene. (a) calculate the heating requirement for this process in kw

Aluminum–lithium (al-li) alloys have been developed by the aircraft industry to reduce the weight and improve the performance of its aircraft. a commercial aircraft skin material having a density of 2.47 g/cm3 is desired. compute the concentration of li (in wt%) that is required.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.