Physics for Scientists and Engineers Storyline CENGAGE Tenth Edition Raymond A. Serway & John W. Jewett, Jr., Physics for Scientists and Engineers, Tenth Edition. © 2021 Cengage. All Rights Reserved.

May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. CENGAGE Chapter 19 The First Law of Thermodynamics Raymond A. Serway & John W. Jewett, Jr., Physics for Scientists and Engineers, Tenth Edition. © 2021 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. Heat and Internal Energy Internal energy is all the energy of a system that is associated with its microscopic components-atoms and molecules-when viewed from a reference frame at rest with respect to the center of mass of the system. Heat is defined as a process of transferring energy across the boundary of a system because of a temperature difference between the system and its surroundings. It is also the amount of energy Q transferred by this process. CENGAGE Ⓒ2021 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. Units of Heat calorie (cal): energy transfer necessary to raise temperature of 1 g of water from 14.5°C to 15.5°C CENGAGE Calorie (Cal): equivalent to 1000 calories British thermal unit (Btu): energy transfer required to raise temperature of 1 lb of water from 63°F to 64°F © 2021 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. The Mechanical Equivalent of Heat AEint=W + TMW ΔΕ. CENGAGE Ⓒ2021 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part./nRechapter 19th) - summarize it in 2-3 pages double spaced, or po