Αποτελέσματα Αναζήτησης
25 Ιαν 2021 · A lesson covering the key concepts involving heat transfer resulting in a change phase, including discussions about Phase Diagrams and Latent Heat, and some ...
6 Δεκ 2015 · Introduces specific and latent heats through a phase change curve (heating curve). Solves problems involving heat transfer to a substance or object. 150+ free and 60+ exclusive videos....
This video covers phase of matter from a molecular perspective, phase changes, and specific latent heat. It also examines the T vs. t graph for an object gra...
Q = m L f (for melting/freezing), Q = m L v (for vaporization/condensation), where L f is the latent heat of fusion, and L v is the latent heat of vaporization. The latent heat of fusion is the amount of heat needed to cause a phase change between solid and liquid.
Phase changes occur at fixed temperatures for a given substance at a given pressure, and these temperatures are called boiling and freezing (or melting) points. During phase changes, heat absorbed or released is given by \ (Q = mL,\) where \ (L\) is the latent heat coefficient.
Learn Latent Heat & Phase Changes with free step-by-step video explanations and practice problems by experienced tutors.
Latent heat is measured in units of J/kg. Both L f and L v depend on the substance, particularly on the strength of its molecular forces as noted earlier. L f and L v are collectively called latent heat coefficients.
