In a Dewar's flask, heat flow from the resistor produces a change in the temperature of the water within the calorimetry cup.
Photon energy is often the means by which an electro-dynamic system transfers energy to its surroundings. The quintessential example is the emission of light from an excited atom as it returns to the ground state.
Another common situation involves heat loss from a resistor, usually initiated by collisions between current electrons and conductor atoms at the molecular level which leads to a temperature difference between the resistor and the environment leading to heat flow.
 The WikiPremed MCAT Course is a comprehensive course in the undergraduate level general sciences. Undergraduate level physics, chemistry, organic chemistry and biology are presented by this course as a unified whole within a spiraling curriculum. Please read our policies on Privacy and Shipping & Returns. Contact Us. MCAT is a registered trademark of the Association of American Medical Colleges, which does not endorse the WikiPremed Course. WikiPremed offers the customers of our publications or our teaching services no guarantees regarding eventual performance on the MCAT.
WikiPremed is a trademark of Wisebridge Learning Systems LLC. The work of WikiPremed is published under a Creative Commons Attribution NonCommercial ShareAlike License. There are elements of work here, such as a subset of the images in the archive from WikiPedia, that originated as GNU General Public License works, so take care to follow the unique stipulations of that license in printed reproductions. |