The gas equation for one mole of oxygen relates its pressure, p (in atmospheres), its temperature, t (in k), and its volume, v (in cubic decimeters, dm3): t=16.574⋅1v−0.52754⋅1v2−0.3879p+12. 187vp. (a) find the temperature t and differential dt if the volume is 32 dm3 and the pressure is 1.75 atmosphere.

Wind or electric energy force force of friction

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If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.