Specific Latent Heat Definition Steps: - Recall that specific latent heat is the energy required per unit mass for a phase change at constant temperature. - Examine each option for key terms: "unit mass" for specificity, "change of state" for phase transition, and "without temperature change" for isothermal process. - Eliminate D immediately, as it involves temperature change, which defines specific heat capacity, not latent heat. - Compare A, B, and C: A and C include "unit mass," but B omits it, making B describe total latent heat. Why A is correct: - It matches the definition L = Q/m, where L is specific latent heat, Q is heat transferred, and m is unit mass during phase change without temperature rise. Why the others are wrong: - B omits "by unit mass," describing total latent heat for any mass, not specific per unit mass. - C is worded nearly identically to A but lacks precision in phrasing; standard texts use A's exact form. - D refers to temperature change, defining specific heat capacity c = Q/(mΔT), not latent heat. Final …