Hartmann, Francis M., 1870- · New York, McGraw-Hill · leaf 99
nsidered constant, then the temperature of the element maybe taken as the mean of the two temperatures at the points aand b. If this mean temperature be then projected across to thecurve of cooling B, and at the point c, so found, a tangent be drawn,then the slope of this tangent is numerically… … Fig. 8. now, we take the product of the thermal capacity of the element ab,and the rate of change of temperature just found, we obtain q/t,the quantity of heat lost, per unit of time, by the element ab atthe instant when its temperature is defined by the point c. But,since the temperatures of the…
Heat · Thermodynamics
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