An insulated container, filled with 10 kg of liquid|water at 20°C, is fitted with a stirrer. The stirrer is made to turn by lowering a 25-kg object outside the container a distance of 10 m using a frictionless pulley system. The local acceleration of gravity is9.7 m/s². Assume that all work done by the object is transferred to the water and that the water is incompressible. A. Determine the work transfer (kJ) to the water. B. Determine the increase in internal energy (kJ) ofthe water. C. Determine the final temperature (°C) of thewater. D. Determine the heat transfer (kJ) from the waterrequired to return the water to its initialtemperature.

Consider 5 kg of air initially at 101.3 kPa and 38°C.Heat is transferred to the air until the temperature reaches 260°C. Determine the change of internal energy, the change in enthalpy, the heat transfer, and the work done for (a) a constant-volume process and(h) a constant-pressure process. Use SI units.

If M3=1.5, then the range of M4 is greater than 1.0 and less than 1.5

Page 4) Given: Steady-state-steady-flow of a compressible gas. A thin normal shock occurs and is shown for a control volume fixed on the wave. Relative flow at (1) approaches the shock from upstream and uniform relative flow at (2) movies away downstream of the shock. For this flow situation only the pressures and densities are known. The gas is not thermally perfect. Starting from 1st principles develop the following general relationship for the shock speed of a wave moving into a static fluid. This is the shock speed (left-right) viewed from the ground.

The production history and fluid properties as a function of time and average reservoir pressure from the X-sand Gas reservoir in Algeria are given in the table below. The reservoir's believed to be under the influence of water drive which is entering the reservoir at a constant unknown rate (Qw) where We = (Qw)(t) and t is the time. The reservoir temperature's 160 °F. The gas gravity is 0.625 and it contains 5 mol % CO₂ and 4 mol% H₂S. Calculate the initial gas-in-place (G₁) in SCF. \text { What is the value of } Q_{w} \text { in } M \mathrm{ft}^{3} / \text { day? } Calculate the amount of water which encroached the reservoir (We) in bbl after 730 days.

6.In general, when the motive fluid is a gas and the produced vacuum is used to evacuate or to vent a vessel orsystem, I would use the word Ejector. a. True b. False

The pressure at section 2 is greater than the pressure at section 3 Air Prl 1234 Prec