In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min through a radiator where it is cooled to 35°C. If the water arrives at the radiator at a temperature of...

In a hot water heating system, water heated to 95°C and then is pumped at the rate of 4 L/min through a radiator where it is cooled to 35°C. If the water arrives at the radiator at a temperature of 85°C, how much heat in kJ does the radiator release each hour?