Q48P - Chemistry: Molecular Nature Of Matter And Change

Question

Use the following half-reactions to write three spontaneous reactions  , calculate for each reaction, and rank the strengths of the oxidizing and reducing agents:

(1)  

(2)   

(3)  

Step-by-Step Solution

Answer

The reaction to be spontaneous to be combined and reversed solution and the cancel common terms of oxidising agents and reducing agents.

Step 1: To Write three spontaneous reactions from the given half-reactions

 Spontaneous reactions 

(1)  

(2)  

(3)  

(a) Combine (1) and reversed of (2):

 Cancel common terms to obtain the spontaneous reaction:

  (b) Combine (1) and reversed of (3):

 Cancel common terms to obtain the spontancous reaction:

 

 (c) Combine (2) and reversed of (3):

 

Cancel common terms to obtain the spontaneous reaction:

 Oxidising agents :  

Reducing agents :  

 

Therefore ,the work is done is

 

(a)   

(b  

 (c) 

Oxidising agents :  

Reducing agents :