100-kg of R-134a at 200 kPa- are contained in a piston-cylinder device whose volume is 12.322 m3. The piston is now moved until the volume is one-half its original size. This is done such that the pressure of the R-134a does not change. Determine the final temperature and the change in the total internal energy of the R-134a.
Public Speaking Midterm Exam Study Guide (Chapters 19 and 13 Lecture Notes) 1/21/16 Chapter 3 • communication apprehension fear or anxiety associated with real or anticipated communication • Factors Associated with CA: 1. poor preparation 2. trait anxiety 3. state anxiety 4. selfexpectations 5. fear of evaluation 6. fearing that listeners perceive apprehension 7. fear of failure 8. overreacting to the body’s physiological response • envision a perfect performance and you’re more likely to be able to achieve it • to manage CA: pick topics that you care about practice makes progress anticipate the speech situation learn from the other speakers remember that nervousness isn’t visible maintain perspective • Power Pose hold for two minutes and you come across as more competent and confident 1/28/16 Chapter 2 Listening is a multiway process • Basic Model of Communication simplest oneway communication • person speaking → channel of communication /message → person receiving 1 Speaker: is the encoder they create the message (using spoken language, dependent on the context, etc) 2 Message: verbal or nonverbal 3 Receiver: the decoder of the message (Is the end message always the same No; i.e. • TwoWay Model of Communication • person speaking →channel of communication/message → person receiving and then back around again = the feedback loop • Noise (over the message): sources of noise are either: 1 external (construction) 2 internal (conflicts, breakups) 3 physiological (hunger, body temperature) 2/2/16 Listening and Speaking in a Democratic Society Listening is so difficult because we don’t practice we look for shortcuts • Multitasking leads to: 1 40% drop in productivity 2 increased stress 3 10% avg. IQ drop • Process of Communication: Transaction Model • sourcereceiver (encodesdecodes) (feedback)> message > sourcereceiver (encodesdecodes) sourcereceiver (encodesdecodes)