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A piston/cylinder system contains 50 L air at 300?C, 100 kPa, with the piston initially on a set of stops. A total external constant force acts on the piston, so a balancing pressure inside should be 200 kPa. The cylinder is made of 2 kg steel initially at 1300?C. The system is insulated, so heat transfer occurs only between the steel cylinder and the air. The system comes to equilibrium. Find the final temperature and the entropy generation.
Water is at 9000 kPa and 300 degrees celcius and flows through a partially open valve. Pressure immediately after the valve is measured to be 600 kPa. Calculate the specific internal energy of the water leaving the valve
A jet airplane with a mass of 5 Mg has a touchdown speed of 300 km/h, at which instant the braking parachute is deployed and the power shut off.
(a) How is raw pig iron extracted from iron oxide ores (b) Write a typical chemical reaction for the reduction of iron oxide (Fe2O3) by carbon monoxide to produce iron.
Air enters an adiabatic nozzle steadily at 300 kPa, 200 o C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm 2 . Determine (a) the mass flow raw through the nozzle, (b) the exit temperature of the air, and (c) the ..
Alexis borrows $10,000 today and promises to pay it back in equal monthly installments of $250. If the agreed loan interest rate is 6% compounded monthly
A tensile test was performed on a metal specimen having a circular cross section with a diameter of 0.50 inch. The gage length is 2 inches. For a load of 13.5 kips, the elongation was 4.66 x 10-3 inches. If the load is assumed to be within the linear..
Other than measurement, for which it might be poor, what could be the engineering reason for such a weir?
calculate the equilibrium concentration of HClO formed.
Produce a plan drawing showing the position of each borehole (coordinates are given with the borehole logs) and from your plan drawing, justify the best position for a cross section to be placed.
Compute the ratio of refraction correction to curvature correction, and the difference in level between A and B.
What is the normality of a sodium hydroxide solution that contains 250 mg/L NaOH in 2.3 L solution? What is the concentration in mole/L and mg/L as CaCO3. Na = 23, OH = 17
The aluminum honeycomb is 2 cm thick. the cells are in the shape of 0.5com squares and the walls of the cells are 0.1mm thick. the density of epoxy resing is 1.25g/cm3.
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