Referring to the figure shown below, water contained in a piston-cylinder assembly, initially at 1.5 bar and a quality of 40%, is heated at constant pressure until the piston hits the stops. Heating then continues until the water is saturated vapor. The initial height, L1, is 0.05 m and the change in height, L2, is 0.03 m. Patm-1 bar Piston Water P₁ = 1.5 bar L₁ For the overall process of the water, evaluate the work and heat transfer, each in kJ/kg. Kinetic and potential effects are negligible.

A 10 cm diameter solid cylinder of height 10 cm weighing 0.40 kg is immersed in a liquid (800 kg/cm^3) contained in a tall metal cylinder having a diameter of 13 cm. Before immersion, the liquid was 8 cm deep. At what level from the bottom will the solid cylinder float? W. = 0.40kg 10cmo tank New L.S. と。 Original L.S

In a given setup, distilled water flows towards the inside and goes outside of the vessel as shown in the figure. What is the rate of change of the water's mass (dm/dt) in the vessel? 3 in. Q = 0.3 ft3/sec V = 30 ft/sec Device m = 0.3 slug/sec %3D

The figure shows two cylinders of diameter D and 2D, connected to each other and containing an incompressible fluid. The two cylinders are filled with leak-proof pistons of weight W1 and W2 as shown. The releationship between W1 and W2 is ... a) W2 = WI b) W2 = 0.5 W1 c) W2 = 5 W1 d) W2 = 0.4 W1 20 M

Glycerin flows at 35 m through a 150 mm diameter new wrought iron pipe at a velocity of 3 m/s. It has an absolute viscosity of 1,50 Pa-s and a specific gravity of glycerin = 1,26, 4. Determine the head loss due to friction,

A gas expands from 0.03 m3 to 0.05 m3 at constant pressure of 3.5 atm. Determine the work done.

During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the speed increases from 200 to 800 ft/s the internal energy decreases 20 BTU/lb and the specific volume increases from 2 to 10 ft³/lb. No heat transferred. Determine the following: a)AKE in ft-lb;/Ibm b)APE in ft-lb/lbm c)AW: (flow work) ft-lb:/lbm d)AH in BTU e) Net work in hp for 15 lb/min of fluid (use mass flow rate for this item only)

Example 3-5 If the mass of cylinder C is 40 kg, determine the mass of cylinder A in order to hold the assembly in the position shown. 30 Solution Free-Bo, Diugram 40 kg TED

No. 1. (10 Pts) An aluminum pipe with a length of 60 m at a temperature of 10°C rests freely on the ground. An adjacent steel pipe at the same temperature is 5 mm longer than the aluminum pipe. (a) At what temperature (degrees Celsius) will the aluminum pipe be 15 mm longer than the steel pipe? (Assume that the coefficients of thermal expansion of aluminum and steel are aa=23x10-6/"C and as=12x10-6/ c, respectively.) (b) What is the axial stress developed in the aluminum pipe when the temperature was increased? 5 mm Aluminun Steel Figure No. 1

In the figure shown, determine the height h of water and the gage reading at A when the absolute pressure at B is 300 kPa h 721 mm Air Pabs-180 kPa Mercury Water ⒸA