键能是否随温度发生变化?一个是键能,还有一个是键解离能,你说的情况应该是后者,等待大神们的回复 你说的是对的,键能和键解离能确实不一样,IUPAC defines bond energy as the average value of the gas-phase bond dissociation energies (usually at a temperature of 298 K) for all bonds of the same type within the same chemical species.查看更多