Chapter 22633Q22.16To increase its entropy, raise its temperature. To decrease its entropy, lower its temperature.“Remove energy from it by heat” is not such a good answer, for if you hammer on it or rub it with ablunt file and at the same time remove energy from it by heat into a constant temperature bath, itsentropy can stay constant.Q22.17An analogy used by Carnot is instructive: A waterfall continuously converts mechanical energy intointernal energy. It continuously creates entropy as the organized motion of the falling water turnsinto disorganized molecular motion. We humans put turbines into the waterfall, diverting some ofthe energy stream to our use. Water flows spontaneously from high to low elevation and energyspontaneously flows by heat from high to low temperature. Into the great flow of solar radiationfrom Sun to Earth, living things put themselves. They live on energy flow, more than just on energy.
This is the end of the preview.
access the rest of the document.