Q1) (a) A gas at a pressure of 2 atm = 2.02 x 105 Pa is heated and allowed to expand against a frictionless piston at constant pressure. If the volume change is 0.5 m³ during this expansion, calculate the work done by the gas. (b) If 3 x 105 J of heat enters the gas during the expansion, calculate the change in internal energy of the gas. (c) Has the internal energy increased or decreased? Why ?

Q1) (a) A gas at a pressure of 2 atm = 2.02 x 105 Pa is heated and allowed to expand against a frictionless piston at constant pressure. If the volume change is 0.5 m³ during this expansion, calculate the work done by the gas. (b) If 3 x 105 J of heat enters the gas during the expansion, calculate the change in internal energy of the gas. (c) Has the internal energy increased or decreased? Why ?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 31P: An ideal gas initially at 300 K undergoes an isobaric expansion at 2.50 kPa. If the volume increases...

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