An adiabatic, steady-flow heat exchanger condenses 11,000 kg/h of saturated steam at 300 kPa to a saturated liquid also at 300 kPa. The condensing steam heats 200,000 kh/h of air at 100 kPa and 25oC to 100 kPa and 125oC. Estimate the rate of energy destruction (in kW) during this process?