Home
Class 12
CHEMISTRY
A hypothetical reaction Ato2B, proceeds ...

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

`q - v + 2x`

B

`q + v - 2x`

C

`q + v + 2x`

D

`q + 2v - 2x`

Text Solution

Verified by Experts

The correct Answer is:
C

According to Hess’s law, the total heat changes occurring during a chemical reaction are independent of path

`Delta H = q + V + 2x`.
Promotional Banner

Similar Questions

Explore conceptually related problems

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

Identify A, B, C and D in the following reaction sequence

For a reaction A+2BtoC+D , if DeltaH=-25kcal , T=300 K and DeltaS=90 cal , then the reaction is

Given these reactions : Ato2B DeltaH=40KJ BtoCDeltaH=-50KJ 2CtoD DeltaH=-20KJ Calculate DeltaH for the reaction : D+Ato4C

An imaginary reaction X rarr Y takes place in three steps X rarr A, DeltaH=-q_(1), " "BrarrA, DeltaH=-q_(2), " "BrarrY, DeltaH=-q_(3) If Hess's law is applicable, then the heat of the reaction (X rarr Y) is :