As shown in Fig. P3.134, a rigid tank initially contains 3 kg of carbon dioxide (CO2) at 500 kPa. The tank is connected by a valve to a pistoncylinder assembly located vertically above, initially containing 0.05 m3 of CO2. Although the valve is closed, a slow leak allows CO2 to flow into the cylinder from the tank until the tank pressure falls to 200 kPa. The weight of the piston and the pressure of the atmosphere maintain a constant pressure of 200 kPa in the cylinder. Owing to heat transfer, the temperature of the CO2 throughout the tank and cylinder stays constant at 290 K. Assuming ideal gas behavior, determine for the CO2 the work and heat transfer, each in kJ.
WEEK 2 VIDEO NOTES Sources of Info Types of sources: Scientific literature News media and their websites Science Magazines and their websites Wikipedia Expert websites Books Other web sites Advantages and Disadvantages of sources Scientific literature Advantages: Can get the latest information Details the evidence Peers think it is convincing Disadvantages: Can be hard to understand Science is difficult to do. Results may be replicate Often narrow view of topic News media Advantages: Easy to understand – written for non-scientist Its what people know or talk about Sometimes leads you to scientific literature Disadvantages: