Q$2$ The engine from problem $1$ above is connected to a dynamometer which gives a brake output torque reading of $205$ Nm at $3600$ RPM$.$ At this speed air enters the cylinders at $85$ kPa and $60$C$,$ the mechanical efficiency of the engine is $85\%.$

Calculate:

a$)$ Brake power

b$)$ Indicated power

c$)$ Brake mean effective pressure

d$)$ Indicated mean effective pressure

e$)$ Brake work per unit mass of gas in the cylinder