\begin{tabular}{|l|l|}
\hline Q.35 & $\begin{array}{l}\text { Consider a counter-flow heat exchanger with the inlet temperatures of two fluids } \\
(1 \text { and } 2) \text { being } \mathrm{T}_{1, \text { in }}=300 \mathrm{~K} \text { and } \mathrm{T}_{2, \text { in }}=350 \mathrm{~K} . \text { The heat capacity rates of the } \\
\text { two fluids are } \mathrm{C}_{1}=1000 \mathrm{~W} / \mathrm{K} \text { and } \mathrm{C}_{2}=400 \mathrm{~W} / \mathrm{K}, \text { and the effectiveness of the } \\
\text { heat exchanger is } 0.5 . \text { The actual heat transfer rate is } \\
\text { (Answer in integer) }\end{array}$ \\
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\end{tabular}