Answer:

Explanation:
In order to solve this question, we would need to incorporate Stoichiometry, which involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data.
Here's a balanced equation for the reaction:

Let us define  work as;
 work as;

where  
External pressure is given as  
 , therefore the work solely depends on the change in volume and since the reactants are solids, none of the reactants contribute to the volume. Hence,
 , therefore the work solely depends on the change in volume and since the reactants are solids, none of the reactants contribute to the volume. Hence,  
To find the volume of the products, we need to first find the amount of moles of the product made from   using the molar mass of
 using the molar mass of   which is 101.1032 g/mol
  which is 101.1032 g/mol  

Now let us convert moles of   into moles of
  into moles of  and
 and  using the stoichiometric ratios from our balanced equation of the reaction.
  using the stoichiometric ratios from our balanced equation of the reaction. 


 is not factored into the volume calculation because it is a solid.
 is not factored into the volume calculation because it is a solid.
Now let us also convert the moles of   and
  and   into grams using their respective molar masses.
 into grams using their respective molar masses.


We will now proceed to convert grams into volume using the density values provided.


Summing up the two volumes, we get the final volume

Plugging everything into the  equation, we get:
 equation, we get:

Finally, let us convert  into joules using the conversion rate of;
 into joules using the conversion rate of;
