'Qh he w ql' presentation slideshows

Second Low of Thermodynamics

Second Low of Thermodynamics. Example 1. Heat always flows from high temperature to low temperature. So, a cup of hot coffee does not get hotter in a cooler room. Yet, doing so does not violate the first low as long as the energy lost by air is the same as the energy gained by the coffee.

467 views • 34 slides