A total feed of 200 mol/h having an overall composition of 42 mol% heptane and 58 mol% ethyl benzene is to be fractionated at 101.32 kPa abs pressure to give a distillate containing 97 mol% heptane and a bottoms containing 1.1 mol% heptane. The feed enters the tower partially vaporized so that 40 mol% is liquid and 60 mol% is vapor. Equilibrium data are given in the previous problem statement. Calculate the following: (a) Moles per hour distillate and bottoms (b) Minimum reflux ratio (c) Minimum stages at total reflux (d) Theoretical number of trays required for an

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.