Question 4 (a) Find the dimension of the following quantities (i) Density (ii) Pressure (iii) Velocity (iii) Force (b) Steam 1 containing only substance A is maxed with stream 2 which contains substances A and B at the mixing point. The flow rates of streams 1 and 2 are 60 and 30kg/h respectively. The mass fraction of A in the stream 2.15:0.35. (1) Sketch the process (ii) Determine the composition of the output stream