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Three kilograms of nitrogen (N2) initially at 47C and 2 bar is contained within a rigid, insulated tank. The nitrogen is stirred by a paddle wheel until its pressure doubles. Employing the ideal gas model with constant specific heat evaluated at 300K, determine the work and energy destruction for the nitrogen, each in kJ. Ignore the effects of motion and gravity and let T_0 = 300K, p_0 = 1 bar.
a hydraulic press is powered by a remote high-pressure pump. the gage pressure at the pump outlet is 22 mpa whereas the
A piston-cypinder device contains 3 m^3 H2O at 6 MPa, 800 C (state 1). The system is cooled at constant volume to 180 C (state 2). The first process is followed by isothermal process ending with saturated liquid water (state 3).
standards for firewalls may be based on their thermal response to a prescribed radiant heat flux. consider a
a cold drawn rectangular steel bar 60 x 10 mm with a hole of diameter 12mm is subject to a flctuating tensile load from
the combustion of methane gas ch4 with air leads to the following volumetric analysis of the product gases on a dry
learning goal to determine cartesian force components from magnitude and determine position and resultant vectors by
A brass rod 1.5 cm in diameter is deformed in tension reducing its diameter to 1.128 cm. The data for brass in Fig. 7.19 will be helpful in solving this problem. If the deformation process was performed in one step, what was the yield stress of your ..
The system shown anchors a stanchion of cable-suspended roof. If the tension in cable AB is 900 kN, what are the tensions in cables EF and EG?
on a cloudless day the sunlight that reaches the surface of the earth has an intensity of about 1.2 103 wm2. what is
Your rich godfather has offered you a choice of one of the three following alternatives: $10,000 now; $2,000 a year for eight yeaers; or $24,000 at the end of eight years
2kg of air in a closed rigid tank is fitted with an electrical resistor. the resistor draws a constant current of 10
determine the ocean depth at which the water becomes supercritical. assume the density of the water is that of fresh
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