Question

What is the typical time required to devolatilize 90 % of the volatile mass of a lignite particle

Answer 1

When concentrated acid is added to water it is an exothermic process as heat is released. When concentrated acid is added to water whether the process is exothermic and not endothermic. It is an exothermic reaction as heat is released during the process.

Answer 2

Answer:

heya..

Lignite, often referred to as brown coal, is a soft, brown, combustible, ... Lignite has a high content of volatile matter which makes it easier to convert into gas and liquid petroleum 

i hope its help u