Question

57. 20 g of CH4

is bunt with 150 g of 2 O , producing 675 kJ of heat. Assume that

the amount of oxygen required is in accordance with the equation

4 2 2 2 CH g O g CO g H O ( ) 2 ( ) ( ) 2 (1)   

After the reaction, an excess of Cl2

is added to the reaction mixture and 77 g of

CCl4

is obtained.

1. The enthalpy of combustion of methane is 1

900kJ mol

 and the amount of

O2

remaining unused is 16 g.

2. The enthalpy of combustion of methane is 1

900kJ mol

 and the amount of

O2 used is 48 g.

3. The enthalpy of combustion of methane is 1

900kJ mol

 and the amount of

O2

remaining unused is 54 g.

4. The enthalpy of combustion of methane is 1

920kJ mol

 and the amount of

O2

remaining unused is 32 g.​

Answer 1

Answer:

to long question bro sorry