EllaWhils01Lv1

2 May 2022

Scientists have proposed that the combustion of methane involves a four-step reaction pathway.

1.                                 

2.                  

3.  

4 .  

 

4. The enthalpy change for the reaction is

A. H = +427.5 kJ

B. H = +190.1 kJ

C. H = -427.5 kJ

D. H = -190.1 kJ

 

5. The intermediate products in the above reaction mechanism are

A. and  

B. and  

C. and  

D. and  

 

6. The overall reaction for the combustion of methane would require how many moles

A.  mol

B. 1 mol

C. 2 mol

D. 4 mol