Would be much appreciated if someone could help me with this will give brainiest .

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

The higher the astm grain size number, the finer the gran is. a)-true b)-false

What is the main objective of using reheat rankine cycle?