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

Byju's Answer

Standard XII

Chemistry

Half life

For a reversi...

Question

For a reversible reaction : $N_{2} + O_{2} ⇌ 2 N O$
Activation energy of the backward reaction is lower than that of forward reaction. The slope of k verse 1/T graph will be:

zero

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

- \frac{H}{2.303 R}

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

\frac{H}{2.303 R}

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

- \frac{Δ H}{R}

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

Open in App

Solution

The correct option is C $\frac{H}{2.303 R}$
For reactions whose forward direction has less activation energy, the graph has -ve slope, indicating, a faster reaction in the forward direction.
It is given in the question that the backward reaction has a lower $E_{A}$ than the forward reaction. this means graph has a positive slope.
Slope of graph $= \frac{Δ H}{2.303 R}$
Hence answer is [C].

Suggest Corrections

Similar questions

Q. For a reaction,

A \to B; Δ H = 20 k J . {m o l}^{- 1}

, the activation energy of the forward reaction is

85 k J / m o l

. The activation energy of the backward reaction will be:

Q. For a given reaction, energy of activation for forward reaction

(E_{a f}) i s 80 k J . m o l^{- 1} . Δ H = - 40 k J . m o l^{- 1}

for the reaction. A catalyst lowers

E_{a f} t o 20 k J . m o l^{- 1}

. Find out the ratio of energy of activation for reverse reaction before and after addition of catalyst.

Q. Consider the following reversible reaction,

A (g) + B (g) ⇌ A B (g)

.The activation energy of the backward reaction exceeds that of the forward reaction by 2RT

i n J m o l^{- 1}

. If the pre-exponential factor for the forward reaction is 4 times that of the reverse reaction, the absolute value of

Δ G^{θ} (i n J m o l^{- 1})

for the reaction at 300 K is.
(Given; ln(2) =0.7,

R T = 2500 J m o l^{- 1}

at 300 K and G is the Gibbs energy)

Q. For a given reaction, energy of activation for forward reaction

(E_{a f})

80 k J . m o l^{- 1} .

Δ H = - 40 k J . m o l^{- 1}

for the reaction. A catalyst lowers

E_{a f}

20 k J . m o l^{- 1} .

The ratio of energy of activation for reverse reaction before and after addition of catalyst is :

For the reaction $A + B \to C + D Δ H = - 20 k J m o l^{- 1}$ . The activation energy of the forward reaction is $85 k J m o l^{- 1}$ . The activation energy for backward reaction is

Join BYJU'S Learning Program

For a reversible reaction : N2+O2⇌2NOActivation energy of the backward reaction is lower than that of forward reaction. The slope of k verse 1/T graph will be:

For a reversible reaction : $N_{2} + O_{2} ⇌ 2 N O$
Activation energy of the backward reaction is lower than that of forward reaction. The slope of k verse 1/T graph will be: