Distillation is used to separate pentane from hexane. The feed amounts 700 mol/s and has amole ratio pentane/hexane = 0.5. The bottom and top products have the compositions xB=0.05 andxD= 0.98. The reflux ratio is 2.25. The column pressure is 1 bar. The feed, at the bubbling point, enters the column exactly on the feed tray. The tray temperature is equal to the feed temperature. The pentane vapor pressure is given by: lnP=11T-3410/T The vapor pressure of hexane is 1/3 of the pentane vapor pressure over the whole temperature range. The heat of vaporization amounts to 30 kJ/mol. The distance between the trays amounts to 0.50 m. A.The vapor stream from the reboiler=693.100 mole/s B.The required energy in the reboiler=20793.01887 kJ/s c. number of equilibrium stages

In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. A chunk of titanium weighing 19.39 grams and originally at 97.14 °C is dropped into an insulated cup containing 80.82 grams of water at 23.76 °C. Water Thermometer Metal- sample 2003 Thomson-Brooks/Cole Stirring rod The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.81 J/°C. Using the accepted value for the specific heat of titanium (See the References tool), calculate the final temperature of the water. Assume that no heat is lost to the surroundings. Tfinal = °℃

how to draw and label a process flowchart

A fully charged battery contains 0.02 kmol Ag₂O (silver oxide) and 0.02 kmol Zn (zinc). The battery is initially at a temperature of 21°C. The fully charged battery is then discharged for half an hour under adiabatic conditions (no heat leaves the system). During the half hour of being discharged, the electric current from the battery does 200 kJ of work external to the battery system (none of this external work heats the battery). During this half hour, 0.001 kmol of both reactants are consumed in the net cell discharge reaction: Please see the following table for heat capacities and heats of formation. The heats of formation below show the amount of energy (kJ) needed to form one kmole of each component. If the heat of formation is negative, then forming that species releases energy (to do work or provide heat). Therefore, to create one kmole of silver oxide 29000 kJ energy is released and is generated in the battery (for work or heat), and if one kmole of silver oxide decomposes…