You visited us 1 times! Enjoying our articles? Unlock Full Access!

Le Chatelier's Principle for Del N Equals to 0

In an exother...

Question

In an exothermic reaction $A \to B$ , the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ $m o l^{- 1}$ , the activation energy of the reverse reaction is :

$80.0 k J m o l^{- 1}$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$60.0 k J m o l^{- 1}$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$40.0 k J m o l^{- 1}$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$160.0 k J m o l^{- 1}$

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D
$160.0 k J m o l^{- 1}$

$E_{a} =$ Activation energy for forward reaction, $E_{a}^{'}$ that for reverse reaction. Then $E_{a} - E_{a}^{'} = Δ H$
Or, $E_{a} - 2 E_{a} = - 80, E_{a} = 80 k J, E_{a}^{'} = 2 \times 80 k J$

Suggest Corrections

Similar questions

In an exothermic reaction $A \to B$ , the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ $m o l^{- 1}$ , the activation energy of the reverse reaction is :

Q. If a reaction

A + B \to C

is exothermic to the extent of

30 k J m o l^{- 1}

and the forward reaction has an activation energy,

X k J m o l^{- 1}

the activation energy for the reverse reaction is :

Q. If a reaction, A + B

\to

C, is exothermic to the extent of 30 kJ

m o l^{- 1}

and the forward reaction has an activation energy,

70 k J / m o l^{- 1}

. The activation energy for the reverse reaction is:

Q. If a reaction

A + B \to C

is exothermic to the extent of 30 kJ mol

^{- 1}

and the forward reaction has an activation energy of 249 kJ mol

^{- 1}

, the activation energy for reverse reaction in kJ mol

^{- 1}

is:

Q. If a reaction,

A + B ⟶ C

, is exothermic to the extent of

30 k J / m o l

and the forward reaction has an activation energy of

249 k J / m o l

, the activation energy for reverse reaction in

k J / m o l

is:

Join BYJU'S Learning Program

In an exothermic reaction A→B, the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ mol−1, the activation energy of the reverse reaction is :

The correct option is D 160.0kJ mol−1 Ea= Activation energy for forward reaction, E′a that for reverse reaction. Then Ea−E′a=ΔH Or, Ea−2Ea=−80,Ea=80 kJ,E′a=2×80 kJ

In an exothermic reaction $A \to B$ , the activation energy of reverse reaction is twice that of forward reaction. If enthalpy of the reaction is -80 kJ $m o l^{- 1}$ , the activation energy of the reverse reaction is :

The correct option is D
$160.0 k J m o l^{- 1}$

$E_{a} =$ Activation energy for forward reaction, $E_{a}^{'}$ that for reverse reaction. Then $E_{a} - E_{a}^{'} = Δ H$
Or, $E_{a} - 2 E_{a} = - 80, E_{a} = 80 k J, E_{a}^{'} = 2 \times 80 k J$