[GATEWAY-Middle School]
Why do we have to use the Wait Block in our code?
a. Because it takes time for the ramps and gap-fillers several seconds to move into place after the robot presses the button.
b. Because it makes our code shorter and easier to follow.
c. There is no such thing as a wait block.

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.