Hello, all! I am involved in a discussion where the topic is the heat of fusion for hydrogen. From what I've found, the heat of fusion for H2 is around 22.5 million °F and the average house fire is no more than 1,800 °F or so. So, what I'm trying to find is, how far from 0.10 grams of a hydrogen fusion reaction must one be for the temperature to be about that of a burning house? If there is a formula, that'd be great so that I could have a general answer. Thanx in advance!