Calculate the temperature change of the storage tank

Question

A flat-plate solar collector, mounted at the latitude angle and south facing, has an effective
area of 2 m2. Water is pumped in through this collector at a rate of 20 × 10-6 m3/s and the
time-averaged temperature difference between the inflow and the outflow is 18.4 °C. The
collector is used to heat water in a storage tank of capacity 227 liters (50 gallons) for 5 hours
continuously. Calculate the temperature rise in the storage tank. What is the power rating of
the flat-plate collector in W/m2 (effective area)?

 

Please explain each step i don't understand any of this.

Answer 1

This is a physics problem.