A flat-plate solar collector is used to heat water by having water flow through tube attached at the back of the thin solar absorber plate. the absorber plate has a surface area of 2 m with emissivityof 0.9. the surface temperature of the absorber is 35 C, and solar radiation is incident on the absorber at 500 W/m with a surrounding temperature of 0 C. net heat rate absorber by the solar collector heats the water from an inlet temperature (T in). if the water flow rate is 5 g/s with a specific heat of 4.2 kj/kg.k, determine the
temperature rise of the water.