1.问题的提出在参考资料中有这样一道试题引起了大家的争论:在环绕地球正常运行,内部充满与地表同样的气体的宇宙飞船里,蜡烛能持续燃烧吗? 一些同学认为蜡烛能够持续燃烧,理由如下: 首先,蜡烛燃烧的本质是碳与氧发生化学反应.只要蜡烛周围存在氧气,氧气分子就能通过扩 1. Proposal of the problem There is such a question in the reference material that has caused everyone’s argument: Can a candle continue to burn in a spacecraft that runs around the earth and is filled with the same gas as the earth’s surface? Some students think that the candle can burn continuously. The reasons are as follows: First of all, the essence of candle burning is the chemical reaction between carbon and oxygen. As long as there is oxygen around the candle, the oxygen molecules can expand.