Which of the following graphs represents exothermic reaction?

Question

Which of the following graphs represents exothermic reaction? <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/7349836cdcfae038f55e7c19b7038213-.png" /> (A) (I) only (B) (II) only (C) (III) only (D) (I) and (II)

Tardigrade Admin · Accepted Answer

For exothermic reaction, Δ H=-Ve Δ H=Ea(forward reaction)-Ea(backward reaction) For Δ H to be -ve, Ea,b > Ea, f which is true in graph (I) only.

Q. Which of the following graphs represents exothermic reaction?

(I) only

(II) only

(III) only

(I) and (II)

For exothermic reaction, $Δ H = - V e$
$Δ H = E_{a (f or w a r d re a c t i o n)} - E_{a (ba c k w a r d re a c t i o n)}$
For $Δ H$ to be $- v e$ , $E_{a, b} > E_{a, f}$ which is true in graph $(I)$ only.

Q. Which of the following graphs represents exothermic reaction?

(I) only

(II) only

(III) only

(I) and (II)

For exothermic reaction, ΔH=−Ve ΔH=Ea(forwardreaction)​−Ea(backwardreaction)​ For ΔH to be −ve, Ea,b​>Ea,f​ which is true in graph (I) only.

For exothermic reaction, $Δ H = - V e$
$Δ H = E_{a (f or w a r d re a c t i o n)} - E_{a (ba c k w a r d re a c t i o n)}$
For $Δ H$ to be $- v e$ , $E_{a, b} > E_{a, f}$ which is true in graph $(I)$ only.