(D) The activation energy $(E_a)$ of a reaction is a characteristic property of the reaction path and is independent of temperature. It represents the

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The activation energy of a reaction decreases with an increase in temperature.

(D) The activation energy $(E_a)$ of a reaction is a characteristic property of the reaction path and is independent of temperature. It represents the energy barrier that reactants must overcome to form products. While the rate constant $(k)$ increases with temperature according to the Arrhenius equation $(k = Ae^{-E_a/RT})$,the activation energy itself remains constant. Therefore,statement $D$ is incorrect.

Class 11 Chemistry Data Entry - Chemistry Level 0 of all question bank

Which of the following statements is incorrect?

A
For elementary reactions,the order of reaction and molecularity are identical.
B
For the rate-determining step,the order and molecularity are identical.
C
$A$ catalyst does not affect $\Delta H$ (heat of reaction) of a chemical reaction.
D
The activation energy of a reaction decreases with an increase in temperature.

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Level 0 of all question bank

An iron rod of length $2 \, m$ and cross-sectional area of $50 \, mm^2$ is stretched by $0.5 \, mm$ when a mass of $250 \, kg$ is hung from its lower end. The Young's modulus of the iron rod is:

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There is a rectangular sheet of dimension $(2m-1) \times (2n-1)$,where $m > 0, n > 0$. It has been divided into squares of unit area by drawing lines perpendicular to the sides. Find the number of rectangles having sides of odd unit length.

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The product of the distinct $(2n)^{\text{th}}$ roots of $1+i\sqrt{3}$ is equal to:

AP EAMCET 2006

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During an adiabatic process,the pressure of a gas is proportional to the cube of its temperature. The value of $C_p / C_V$ for that gas is

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The kinetic energy $K$ of a particle moving along the $x$-axis varies with its position $x$ as shown in the figure. The magnitude of the force acting on the particle at $x = 9 \, m$ is ............ $N$.

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Which of the following statements is incorrect?

Similar Questions

An iron rod of length $2 \, m$ and cross-sectional area of $50 \, mm^2$ is stretched by $0.5 \, mm$ when a mass of $250 \, kg$ is hung from its lower end. The Young's modulus of the iron rod is:

There is a rectangular sheet of dimension $(2m-1) \times (2n-1)$,where $m > 0, n > 0$. It has been divided into squares of unit area by drawing lines perpendicular to the sides. Find the number of rectangles having sides of odd unit length.

The product of the distinct $(2n)^{\text{th}}$ roots of $1+i\sqrt{3}$ is equal to:

During an adiabatic process,the pressure of a gas is proportional to the cube of its temperature. The value of $C_p / C_V$ for that gas is

The kinetic energy $K$ of a particle moving along the $x$-axis varies with its position $x$ as shown in the figure. The magnitude of the force acting on the particle at $x = 9 \, m$ is ............ $N$.

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