Work & Heat

• Heat and mechanical work

  Related to one another
• Difference of heat


  Can do work
• J


  4.186 joules/calorie
• H


  mc(tf - ti)
• W


  Hh - Hc
• Thermal efficiency


  (Hh-Hc)/Hh x 100%
• Ideal efficiency


  (Th-Tc)/Th x 100%
• H


  In Celsius (°C)
• T


  In Kelvin (K = °C + 273)