A body freezing arrests all the cellular activity in the body. All the metabolism stops. This then would be changed if the temperature would suddenly be increased. Depending on the extend of the freezing, the activity of the cells can be regenerated again before the body burning up.
That's a really cool question. Is a human was frozen, do you mean like, in a cold environment or literally ice? If so ice, then they might die from suffocation? But if they were burning the next, either in the desert or on fire, they might have already died from hypothermia or suffocation from the ice? Dunno.
Particulate movement and energy increases when a liquid is heated to its boiling point. Explanation: When a liquid is heated to its boiling point, the form of the liquid changes. ... The particles with cinematic energy begin to move more randomly. So we can say that the particle movement and the energy grow.