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how to find final temperature of a fluid in an heat exchanger?

First Law of Thermodynamics: $$ \Delta U = Q + W $$ (or $\Delta U = Q - W$ if you are a weirdo...) A continuous, steady state heat exchanger at constant pressure can be modeled as $$ \Delta \dot H = \...
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Advice needed on how to cool 50 ml liquid from 60 °C to 30 °C

If you're wondering how long it would take in order to cool that liquid. $$mc_p\frac{dT}{dt} = \frac{1}{\frac{1}h + \frac{\Delta x}k}A(T_C-T) $$ Where: $m$ is the mass of liquid $c_p$ is the heat ...
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Advice needed on how to cool 50 ml liquid from 60 °C to 30 °C

Place it in an ice bath with a stirrer. As Q=m Cp (T2 - T1) and increasing the container surface area in contact with the ice will improve the rate of heat transfer.
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