PHYSICS101 Lecture Notes - Lecture 2: Ideal Gas Law, Gas Constant, Kelvin
Document Summary
Thermodynamics describes the transformation of energy of all types from one form to another. The first and second laws of thermodynamics govern these changes, and thermodynamic properties, such as internal energy, enthalpy, and entropy, are variables in these laws. They must be determined from the pressure, temperature, and specific volume behavior of a fluid. --- pressure, temperature and volume ----is called equation state for the fluid. The simplest equation of state is for an ideal gas, and this is given by: In this equation v is the volume occupied by the gas at the absolute pressure p and absolute temperature t. the mass and molecular weight of the gas are m and. R is the universal gas constant and has the following values: 8. 314 m3pamol-1k-1 and 0. 7302 ft3 atms lb-mole-1r-1 in si and english units. This equation is a good approximation for the behavior of real gases near and below atmospheric pressure.
