A hypothetical reaction A 2 B proceeds through the following sequence of steps I. A C ; _r H=q₁ II. C D ; _r H=q₂ III. 1 2 D B ; _r H=q₃ The heat of hypothetical reaction is

Step-by-step solution

One mole of A as reactant So, we write down equation (i) Two moles of B as product, so we multiply equation (iii) by (b). Finally, we add the three equation term-by-term array ll A C & q₁ C D & q₂ D 2 B & 2 q₃ A 2 B & q₁+q₂+2 q₃ array Therefore, the heat of hypothetical reaction is q₁+q₂+2 q₃ .