Răspuns :
1.
CH4 + Cl2 --lumina--> CH3Cl + HCl
CH4 + 2Cl2 --lumina--> CH2Cl2 + 2HCl
CH4 + 3Cl2 --lumina--> CHCl3 + 3HCl
CH4 + 4Cl2 --lumina--> CCl4+ 4HCl
2.
3x 3x 3x moli
CH4 + Cl2 --lumina--> CH3Cl + HCl
1 1 1
2x 4x 2x moli
CH4 + 2Cl2 --lumina--> CH2Cl2 + 2HCl
1 2 1
x 3x x moli
CH4 + 3Cl2 --lumina--> CHCl3 + 3HCl
1 3 1
2x 2x moli
CH4 ------------> CH4 netransformat
1 1
CH4 intrat = 3x+2x+x+2x = 8x moli
Cl2 intrat = 3x+4x+3x+2x = 15x moli
=> CH4 : Cl2 = 8x : 15x /:x = 8:15
3.
8,96/22,4 = 0,4 kmoli CH4 = 400 moli
8x = 400 => x = 50
=> 2x = 100 moli CH25Cl2 rezultati