What is desertification?Choose a specific location currently affected by desertification to research (Not a location that has been a desert for a long time. Choose a location currently affected by desertification. Example, if you are looking at the Sahara, the location associated with it currently undergoing desertification would be the outlying Sahel.)Where is it locatedWhat … Read more
Topic: TExamine the basic tenants of identity theory. Where does society play a part in our identity formation and change? Word count: 450-500 Use the following source: Social Psychology: Sociological Perspectives, 3rd ed., by David E. Rohall, Melissa A. Milkie, & Jeffrey W. Lucas
Air is flowing at steady state through a 5 cm diameter pipe at a flow rate of 0.35 mole/min at P = 5 bar and T = 500 K. It flows through a throttle valve and exits at 1 bar. Assume air is an ideal gas with CP = 29.1 J/mol-K. If the throttle valve was … Read more
A common problem in the design of chemical processes is the steady-state compression of gases from a low pressure P1 to a much higher pressure P2. We can gain some insight about optimal design of this process by considering adiabatic reversible compression of ideal gases with stage-wise intercooling. If the compression is to be done in … Read more
Steam is fed to an adiabatic turbine at 4 MPa and 500°C. It exits at 0.1 MPa. (a) If the turbine is reversible, how much work is produced per kg of steam? (b) If the turbine is 80% efficient, how much work is produced per kg of steam? . Methane is compressed in a steady-state … Read more
Propane is to be compressed from 0.4 MPa and 360 K to 4 MPa using a two-stage compressor. An interstage cooler returns the temperature of the propane to 360 K before it enters the second compressor. The intermediate pressure is 1.2 MPa. Both adiabatic compressors have a compressor efficiency of 80%. (a) What is the … Read more
Liquid nitrogen is useful for medical purposes and for research laboratories. Determine the minimum shaft work needed to liquefy nitrogen initially at 298 K and 0.1013 MPa and ending with saturated liquid at the normal boiling point, 77.4 K and 0.1013 MPa. The heat of vaporization at the normal boiling point is 5.577 kJ/mol, and … Read more
Ying Xue Yuan (Anna) University of Mississippi Stock Price Crash Risk Abstract Stock crash price destroys the company’s reputation in the market and among the investors. It also affects the general economy negatively. It is as a result of managers hiding crucial information from the stock market. They fail … Read more
In essay form (or as a chart) and in no more than 700 words, please upload a document responding to the following questions: (1) What is an ecumenical council? (2) What are the five major Christological heresies of the third through the seventh centuries? Identify the principal confusion or error of each heresy. (3) What … Read more
Question 1: Suppose that graduating from a university only serves as a signal of high ability (and is not useful in any other way) and that only high-ability individuals can graduate from university. The costs of a university education are denoted by c. Furthermore, the productivity of low-ability workers is £20,000 … Read more