An insulated pistoncylinder device initially contains 300 L of air at 120 kPa and 178C. Air is now heated for 15 min by a 200-W resistance heater placed inside the cylinder. The pressure of air is maintained constant during this process. Determine the entropy change of air, assuming (a) constant specific heats and (b) variable specific heats.
American Federal Government 1113-090 Professor- Gary Copeland If you were unable to attend the first class, read the following paragraph. Otherwise, skip to the next portion as this is just introductory information. Lecture Week 1: Pointers and “things to know” for this class *We will be using a site (Mindtap) for this course. Email professor for more class specific code and other information. We will be using this site for the book, exercises and homework. *The exercises will give you three tries, the final try’s score is the one recorded, even if a previous try scored higher American Fed. Gov. Notes Chapter 1 (in book), all sections “Declaring Independence” 1-1 * Colonies were valuable because of revenue needed to recover from the French and Indian Wars of 1754-1763 *In an attemp