The heat of combustion is the heat released when a substance is completely burned in oxygen, usually measured per mole. It is determined experimentally in a bomb calorimeter, which holds the sample at constant volume. The heat of combustion is important in comparing fuels and in thermochemical calculations.

燃烧热是物质在氧气中完全燃烧时放出的热量,通常以每摩尔测定。它在弹式量热计中实验测定,该装置使样品保持恒容。燃烧热在比较燃料和进行热化学计算时很重要。