Question

When a substance is heated at fast rate, the temperature of its decomposition will be​

Answer 1

If a substance decomposes if heated to its boiling point, a suitable method is vacuum distillation. In vacuum distillation, the distillation is carried out at reduced pressure. The boiling point of the substance at reduced pressure is lower than the boiling point at atmospheric pressure. So the substance distills at a temperature which is much below its decomposition temperature