Chapter xxxxxx INTRODUCTION AND BASIC CONCEPTS
Thermodynamics xxxxxx-xxxxxxC Classical thermodynamics is based on experimental observations whereas statistical thermodynamics is based on the average behavior of large groups of particles. xxxxxx-2C On a downhill road the potential energy of the bicyclist is being converted to kinetic energy, and thus the bicyclist picks up speed. There is no creation of energy, and thus no violation of the conservation of energy principle. xxxxxx-3C There is no truth to his claim. It violates the second law of thermodynamics.
Mass, Force, and Units xxxxxx-4C Pound-mass lbm is the mass unit in English system whereas pound-force lbf is the force unit. One pound-force is the force required to accelerate a mass of 32.xxxxxx74 lbm by xxxxxx ft/s2. In other words, the weight of a xxxxxx-lbm mass at sea level is xxxxxx lbf. xxxxxx-5C Kg-mass is the mass unit in the SI system whereas kg-force is a force unit. xxxxxx-kg-force is the force re…(생략)
quired to accelerate a xxxxxx-kg mass by 9.807 m/s2. In other words, the we