For a given temperature, conversion fraction was found by dividing the mass loss by the total mass loss at the end of the process.
It can be defined as equationwhere, t is time, x is the conversion fraction, n is thereaction order and k is the rate constant.
It was observed that the apparent activation energy of coal combustion varied with the conversion fraction
. The high CaO lignite was found to show higher activation energy than the low CaO coal.
Remember: To make your conversion fraction
, put the number of days in the previous year's month on the bottom, and the number of days in your planning year's month on top.
The epoxy conversion fraction
, denoted x, at the time t was calculated from [Delta][H.sub.t] and [Delta][H.sub.0], the total reaction heat at the initial time (t = 0):