Question 11. Find the value of extract percentage in the second stage.

Question 12. __________ energy helps for molecular diffusion.

Question 13. Estimate the mole fraction if concentration of A is 2 mol/cu.m and the total concentration is 5 mol/cu.m.

Question 14. For two particles at steady state collision of A and B, J flux of A is 2 mol/sq.m sec, find the J flux of B.

Question 15. From the reaction, Methane –> Carbon + 2(Hydrogen molecule), find the ratio of N Flux of A to the Total N flux( A+B); Given N Flux of B =-2 N flux of A.

Question 16. Find the partial pressure of A if the total pressure is 2 atm; Concentration of A is 2 mol/cu.m and total concentration is 5 mol/cu.m.

Question 17. For a Steady state diffusion of A through Non- diffusing B. N flux of B= ______

Question 18. In respect to free convection over a vertical flat plate, the Nusselt number for laminar and turbulent flows varies respectively with Grashoff number G ᵣ as

Question 19. If the value of N flux of A to the total N flux is 1 then it is a steady state diffusion of non-diffusing B.

Question 20. Experimental results indicate that the local heat transfer coefficient h g for flow over a flat plate with an extremely rough surface is approximated by the relation
hₓ = a x -0.12
Where a is a constant coefficient and x is distance from the leading edge of the plate. What is the relation between this local heat transfer coefficient and the average heat transfer coefficient for a plate of length x?