A hypothetical reaction `Ato2B`, proceeds through following sequence of steps
(i) `A to C,DeltaH=q`
(ii) `C to D,DeltaH=v`
(iii) `(1)/(2)D to B,DeltaH=x`
Then, the heat of reaction is

A hypothetical reaction A to 2B, proceed through following sequence of steps A to C , Delta H = q _(1) , C to D, Delta H = q _(2)(1)/(2) D to B , Delta H = q _(3) The heat of reaction is

A hypothetical reaction, A rarr 2 B , proceeds through following sequence of steps A rarrC,DeltaH=a ,C rarr D,DeltaH=b,1/2D rarr B,DeltaH=c The heat of reaction I s:

For a reaction Ato2B , as time proceeds

A hypothetical reaction, A rarr 2B , proceeds via following sequence of steps {:(ArarrC,,DeltaH = q_(1),,,),(CrarrD,,DeltaH = q_(2),,,),((1)/(2)D rarrB,,DeltaH = q_(3),,,):} The heat of reaction is

A hypothetical reaction, A rarr 2B , proceeds via following sequence of steps {:(ArarrC,,DeltaH = q_(1),,,),(CrarrD,,DeltaH = q_(2),,,),((1)/(2)D rarrB,,DeltaH = q_(3),,,):} The heat of reaction is

Give an example of a reaction for each of the following relations between DeltaH and DeltaU : (i) DeltaU lt DeltaH (ii) DeltaU gt DeltaH (iii) DeltaU=DeltaH .