What is the effect of increasing the feed temperature if \(L / D=1.15 \times\) \((\mathrm{L} / \mathrm{D})_{\min }\) ? Note that \((\mathrm{L} / \mathrm{D})_{\min }\) will change as feed temperature changes. Include effects on \(Q_{R}\) and the number of stages. Use a McCabe-Thiele diagram.