ENERGY, WORK, AND HEAT

ENERGY, WORK, AND HEAT Thermodynamics ENERGY, WORK, AND HEAT Heat and work are the two ways in which energy can be transferred across the boundary of a system. One of the most important discoveries in thermodynamics was that work could be converted into an equivalent amount of heat and that heat could be converted into work. EO 1.8 DEFINE the following: a. Heat b. Latent heat c. Sensible heat d. Units used to measure heat EO 1.9 DEFINE the following thermodynamic properties: a. Specific enthalpy b. Entropy Energy Energy is defined as the capacity of a system to perform work or produce heat. Potential Energy Potential energy (PE) is defined as the energy of position. Using English system units, it is defined by Equation 1-11. (1-11) PE mgz g_c where: PE = potential energy (ft-lbf) m = mass (lbm) z = height above some reference level (ft) g = acceleration due to gravity (ft/sec²) g_c = gravitational constant = 32.17 ft-lbm/lbf-sec² HT-01 Page 14 Rev. 0