Distillation of a binary mixture of a and b with equal moles and relative volatility of 2.1, leads to produce a distillate of 98%a, an intermediate (side product) of 80%a and a residue of 3%a; which is equal to 40% of a fraction in the feed (a) what is the appropriate equation for intermediate operating line? (b) show the three operating lines in mccabe-thiele plot. (c) calculate the products rates for basis of 100mol feed. (d) calculate the minimum reflux for liquid at its boiling point. (e) calculate the increase rate of reflux moles by extracting the intermediate product.

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)