Question

Water enters the condenser at 30 degrees Celsius and leaves at 60 degrees Celsius. What is the temperature difference in degrees Rankine

Answer 1

The temperature difference in degrees Rankine

$$\Delta T\:{^\circ\rm R}=\frac{9}{5}\Delta T\:{^\circ\rm C}$$

$$\Delta T\:{^\circ\rm R}=\frac{9}{5}*(60-30)\:{^\circ\rm C}=54\:{^\circ\rm R}$$