A s a result of conversion,molar combustion heat of castor oil at constant pressur e is - 8.kJ·mol-,standard molar forma经恒压燃烧热换算与标准生成焓转换得到蓖麻油的恒压摩尔燃烧热为- 8.kJ/mol,标准摩尔生成焓为-8.kJ/mol。