As you review the solutions, extract every unique formula used (e.g., N_A = (D_AB * P / RT * z) * ln((1 - y_A2)/(1 - y_A1))). Creating your own formula sheet reinforces memory.
Pro tip: Instead of searching for a full PDF, search for "KV Narayanan Chapter 3 solutions" or specific problem numbers. You will often find partial solutions posted on educational forums like EduRev or LearnChemE. kv narayanan mass transfer solutions pdf
Most professors derive their exam questions directly from the unsolved exercises in the textbook. Having access to the solutions manual effectively turns those "unsolved" problems into solved practice sets. As you review the solutions, extract every unique