Khan Academy: Why Heat Increases Entropy

Do you know why heat increases entropy? In this video, students can explore entropy and its ability to do work. [7:01]

An explanation to prove that entropy, labeled as S, is a valid state variable. [15:38]

A video lecture explaining specific heat, heat of fusion, and the heat of vaporization. See a step-by-step example of how to calculate the amount of heat needed to change the temperature of water. Also explored is the energy required to...

Defining specific heat, heat of fusion, and heat of vaporization, learn how to calculate the amount of heat to change the temperature of water and the energy required to change for a phase change. [14:57]

Definitions of heat-related concepts. Calculations of heat to show changes in temperature and state of matter. [14:57]

This Khan Academy resource is a video that talks about why cepheids pulsate.

Sal Khan demonstrates why S-waves, or transverse waves, only travel in solids. [4:14]

This video will help you understand LaPlace's law to see the effect that pressure, radius, and wall thickness each have on the 'wall stress' in the left ventricle. Rishi is a pediatric infectious disease physician and works at Khan...

Proof that S or entropy is a valid state variable. [15:38]

Defining specific heat, heat of fusion, and heat of vaporization. How to calculate the amount of heat to change the temperature of water and the energy required to change for a phase change. [14:57]