An exothermic reaction, A arrow B , has an activation energy of 15kcalmol- 1 and the energy of reaction is 5kcalmol- 1 . The activation energy in kcalmol- 1 for the reaction, B arrow A is

Question

An exothermic reaction, A arrow B , has an activation energy of 15kcalmol- 1 and the energy of reaction is 5kcalmol- 1 . The activation energy in kcalmol- 1 for the reaction, B arrow A is (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-xn6ikwikktmqqvyk.jpg" /> ( E a ) r =( E a ) f -Δ E =15 kcal mol -1-(-5 kcalmol -1) =20 kcal mol -1.

Q. An exothermic reaction, $A \to B$ , has an activation energy of $15 k c a l m o l^{- 1}$ and the energy of reaction is $5 k c a l m o l^{- 1}$ . The activation energy in $k c a l m o l^{- 1}$ for the reaction, $B \to A$ is

$(E_{a})_{r} = (E_{a})_{f} - Δ E = 15 k c a l m o l^{- 1} - (- 5 k c a l m o l^{- 1})$ $= 20 k c a l m o l^{- 1}$ .

Q. An exothermic reaction, A→B , has an activation energy of 15kcalmol−1 and the energy of reaction is 5kcalmol−1 . The activation energy in kcalmol−1 for the reaction, B→A is

(Ea​)r​=(Ea​)f​−ΔE=15kcalmol−1−(−5kcalmol−1) =20kcalmol−1.

Q. An exothermic reaction, $A \to B$ , has an activation energy of $15 k c a l m o l^{- 1}$ and the energy of reaction is $5 k c a l m o l^{- 1}$ . The activation energy in $k c a l m o l^{- 1}$ for the reaction, $B \to A$ is

$(E_{a})_{r} = (E_{a})_{f} - Δ E = 15 k c a l m o l^{- 1} - (- 5 k c a l m o l^{- 1})$ $= 20 k c a l m o l^{- 1}$ .