Using data for water from Table A-2, determine the
Chapter 11, Problem 11.41(choose chapter or problem)
Using data for water from Table A-2, determine the constants A and B to give the best fit in a least-squares sense to the saturation pressure in the interval from 20 to \(30^{\circ} \mathrm{C}\) by the equation ln \(p_{\text {sat }}=A-B / T\). Using this equation, determine \(d p_{\text {sat }} / d T \text { at } 25^{\circ} \mathrm{C}\). Calculate \(h_{\mathrm{g}}-h_{\mathrm{f}} \text { at } 25^{\circ} \mathrm{C}\) and compare with the steam table value.
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