Arigid, insulated tank that is initially evacuated is connected through a valve to a supply line that carries helium at 200 kpa and 120°c. now the valve is opened, and helium is allowed to flow into the tank until the pressure reaches 200 kpa, at which point the valve is closed. determine the flow work of the helium in the supply line and the final temperature of the helium in the tank.

T=655K, W=816kJ/kg

Explanation:

consulting the properties of gases, for Helium we have,

To find the specific volume we use the equation,

Substituting,

Flow work is gived by,

To find the temperature of the gas in the tank we need

So,

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )

unlike the threaded fasteners which are used to clamp the machine members, power screws are used to transmit power. common applications of power screws are: screw jacks: to lift weight. lead screw of lathe: for axial movement of tool and its precise positioning.