Heat and Mass Transfer " by is a widely recognized textbook used in mechanical engineering for its exhaustive treatment of thermal sciences. The book is published by S.K. Kataria & Sons and is noted for balancing theoretical depth with practical problem-solving. Core Content Overview
The publisher (S. K. Kataria & Sons) has officially digitized the book. You can purchase a legal eBook for roughly ₹300 to ₹500 (approx. $4–$6). This is searchable, bookmarkable, and legal.
The first law of thermodynamics meets time. Kumar introduces the and the Biot number (Bi). He provides simple heuristics: "If Bi < 0.1, lump it. If not, use charts."