2 gm of a coal sample was heated at 120 C for one hour and

Last updated: 6/28/2023

2 gm of a coal sample was heated at 120 C for one hour and residue weighed 1 815 gm Further the sample was heated at 950 C for 8 minutes The residue weighed 0 998 gm Finally the sample was heated at 750 C for 30 minutes and residue left was 0 512 gm Calculate percentage of moisture volatile matter fixed carbon and ash in the coal sample