Question

change with temperature. 10. (10 points, due Th 31 Oct) For the reaction 2A + B + 12 C, answer the following questions: a. If –ra = 10 mol Lº'min', calculate the rate of reaction with respect to B and C, rb and rc, respectively. b. 10 moles of A are fed to a reactor. If 70% conversion occurs, calculate the moles of all chemical species. Are the total moles conserved during the course of reaction? c. The reaction order with respect to A is 2.0. Provide the units that would be possessed by the rate constant, in terms of moles, liters, and minutes.

Answer 1

Ansa. According to this equation - 2A - B + ŚC There is a relation which is - -1.60700B32dfc3 - 0 Here dCAI, dCB] & dC are the change in concentration of A,B & C respectively. we have given – SA - 10 mot hreinn So, we can write/ say - = - dCA = 10 metrin Sy dom 3x10 - 5 mot 2" min Also, Se=d[8] - 15 ml 2² min (from equation ) - 2 x 5 = 5 mol 2 min!!

Ang b the which In this given reaction 2A B + b c stochiometric ratio is 12:1:1 can be simplified as 1 1 : 1 Here, out of 10 moles of A, if 70% conrer- sion occurs which means 7 moles of A are consumed and hence according to the stochio- metric oration - The No. of moles of B formed = 7/2 Also, here total moles are not conserved. Ansc Order of Reaction = 2 We have a relation to find the unit of date constant of nth order which is - k = concentration I Time Concentration) h mol L -1 ( Here order min & (mot L-1) 2 is 2 ) So, Unit of k= mot L mint